Search results for "Carbon-12" - New World Encyclopedia
From New World Encyclopedia
- A ketone (pronounced as key tone) is either the functional group characterized by a carbonyl group (O=C) linked to two other carbon atoms or ...9 KB (1,318 words) - 03:31, 6 October 2022
- Carbonic acid (ancient name acid of air or aerial acid) is a weak acid with the formula H2CO3. It is formed in small amounts when carbon dioxide ...13 KB (2,013 words) - 19:10, 26 November 2023
- A steroid is any of a group of natural or synthetic, fat-soluble, organic compounds belonging to the class of lipids and characterized by a molecular ...10 KB (1,426 words) - 20:04, 9 February 2023
- Category:Public {|style="border: 1px solid; float: right; width: 250px;" !colspan="2" style="text-align: center; background: ...10 KB (1,452 words) - 10:12, 11 March 2023
- Nucleosides are structural subunits of nucleic acids, the macromolecules that convey genetic information in living cells. They consist of a nitrogen ...6 KB (865 words) - 10:10, 11 March 2023
- Acetylene (systematic name: ethyne) is a hydrocarbon belonging to the group of alkynes. It is considered to be the simplest of all alkynes as ...14 KB (2,038 words) - 07:36, 14 June 2023
- In chemistry, isomers are molecules that share the same chemical formula but differ in the arrangement of atoms. (Isomers in chemistry should ...14 KB (2,096 words) - 05:56, 11 March 2024
- A metalloid is a chemical element with properties that are intermediate between those of metals and nonmetals. The following elements are generally ...7 KB (910 words) - 16:19, 9 November 2022
- Johann Friedrich Wilhelm Adolf von Baeyer (October 31, 1835 – August 20, 1917) was a German chemist who made major contributions to the field ...9 KB (1,376 words) - 06:04, 15 June 2023
- Astrochemistry, representing an overlap of the disciplines of astronomy and chemistry, is the study of chemicals found in outer space, including ...7 KB (940 words) - 18:21, 19 August 2023
- Carboxylic acids are organic acids characterized by the presence of one or more carboxyl groups in their molecules. A carboxyl group consists ...13 KB (1,872 words) - 19:11, 26 November 2023
- In chemistry, a carbene is a highly reactive organic compound with the general molecular formula "R1R2C:." This formula indicates that ...12 KB (1,686 words) - 07:11, 24 April 2023
- An aerogel is a low-density solid-state material derived from a gel in which the liquid component of the gel has been replaced with gas. The ...18 KB (2,574 words) - 05:49, 16 June 2023
- Particulates, also referred to as particulate matter (PM), aerosols, or fine particles, are tiny particles of solid or liquid suspended in a ...18 KB (2,652 words) - 08:57, 18 November 2022
- The respiratory system is an integrated network of organs and tubes that coordinates the exchange of oxygen and carbon dioxide between an organism ...13 KB (1,922 words) - 19:44, 16 April 2023
- Diazonium compounds or diazonium salts are a group of organic compounds sharing a common functional group with the characteristic structure of ...7 KB (1,048 words) - 13:34, 15 July 2020
- Friedrich August Kekulé von Stradonitz (also August Kekulé) (September 7, 1829 – July 13, 1896) was a German organic chemist. One of the ...9 KB (1,392 words) - 18:28, 21 August 2023
- Submit to get this template or go to Template:Chembox_simple_organic. --> {|class="infobox" width="225" style="float:right; ...5 KB (742 words) - 07:29, 12 January 2024
- An epoxide is a cyclic ether with only three ring atoms. The simplest epoxide is ethylene oxide, also known as oxirane, which is regarded as ...6 KB (852 words) - 19:13, 13 February 2024
- Carbon monoxide, with the chemical formula CO, is a colorless, odorless, and tasteless gas. It is the product of the incomplete combustion of ...20 KB (2,871 words) - 19:08, 26 November 2023
- Phosgene is the chemical compound with the formula COCl2. This highly toxic gas gained infamy as a chemical weapon during World War I, but it ...10 KB (1,416 words) - 22:44, 28 March 2023
- The term carotene refers to a class of related organic compounds with the formula C40H56. Carotenes exist in several isomers that have the same ...11 KB (1,641 words) - 00:37, 29 November 2023
- Jacobus Henricus van 't Hoff (August 30, 1852 - March 1, 1911), a Dutch physical and organic chemist, was the first to propose a three-dimensional ...10 KB (1,516 words) - 17:33, 9 March 2022
- Activated carbon (also called active carbon, activated charcoal, or activated coal) is a form of carbon that has been processed to make it extremely ...23 KB (3,406 words) - 05:41, 15 June 2023
- Pyruvic acid (C3H4O3 (CH3COCO2H)) is a three-carbon, keto acid that plays an important role in biochemical processes. At the pH levels of the ...14 KB (1,901 words) - 15:37, 18 June 2015
- Calanoida Cyclopoida Gelyelloida Harpacticoida Misophrioida Monstrilloida Mormonilloida Platycopioida Poecilostomatoida Siphonostomatoida ...10 KB (1,426 words) - 02:55, 8 January 2024
- In chemistry, an amide is one of two kinds of compounds: * the organic functional group characterized by a carbonyl group (C=O) linked to a nitrogen ...10 KB (1,423 words) - 06:58, 25 July 2023
- Polyester is the name for a class of polymers that contain the ester functional group in their main chain. Although some types of polyesters ...8 KB (1,111 words) - 17:38, 9 October 2021
- Atmospheric chemistry involves study of the chemistry of the atmospheres of Earth and other planets. It is a branch of atmospheric science and ...11 KB (1,481 words) - 06:25, 21 August 2023
- Charcoal is the blackish material consisting mainly of carbon obtained by removing water and other volatile constituents from plant matter (such ...15 KB (2,216 words) - 01:45, 4 December 2023
- An alloy is the combination of metal with other chemical elements (metallic or nonmetallic), forming a solution or chemical compound that retains ...17 KB (2,388 words) - 08:10, 23 July 2023
- Ether is the general name for a class of organic chemical compounds characterized by molecules that contain an ether functional group—an oxygen ...15 KB (2,285 words) - 04:31, 22 March 2024
- Fructose (or levulose) is a simple sugar (monosaccharide) with the same chemical formula as glucose (C6H12O6) but a different atomic arrangement ...12 KB (1,703 words) - 09:20, 21 June 2021
- Purine is a heterocyclic, aromatic, organic compound, consisting of a pyrimidine ring fused to an imidazole ring. Heterocyclic compounds are ...7 KB (928 words) - 23:49, 2 December 2022
- In organic chemistry, functional groups (or moieties) are specific groups of atoms within molecules, that are responsible for the characteristic ...13 KB (1,621 words) - 07:19, 15 April 2024
- <!-- Submit to get this template or go to :Template:Chembox simple organic. --> {|class="infobox" style="float:right;" ...11 KB (1,600 words) - 16:26, 9 November 2022
- Photosynthesis is the conversion of the energy of sunlight into chemical energy by living organisms. In most cases, the raw materials are carbon ...27 KB (4,019 words) - 05:05, 24 November 2022
- The periodic table of the chemical elements is a tabular display of the chemical elements. It is perhaps the icon of Chemistry and expresses ...13 KB (1,942 words) - 00:40, 24 November 2022
- Carbon dioxide is a chemical compound that is found as a gas in the Earth's atmosphere. It consists of simple molecules, each of which has ...34 KB (5,140 words) - 19:07, 26 November 2023
- Silicon (chemical element symbol Si, atomic number 14) is a member of a group of chemical elements classified as metalloids. It is less reactive ...20 KB (2,980 words) - 22:04, 29 January 2023
- Adsorption, not to be confused with absorption, is a process by which a gas, liquid, or solute (substance in solution) binds to the surface of ...19 KB (2,837 words) - 06:18, 15 June 2023
- A giant star is a star with substantially larger radius and luminosity than a main sequence star of the same surface temperature. It is, therefore ...9 KB (1,372 words) - 07:44, 24 January 2023
- Formic acid (systematic name methanoic acid) is the simplest carboxylic acid. Its formula is HCOOH or CH2O2. In nature, it is found in the stings ...13 KB (1,811 words) - 06:35, 1 April 2024
- Propane is a three-carbon alkane, normally a gas, but compressible to a liquid that is transportable. It is derived from other petroleum products ...13 KB (1,941 words) - 00:08, 2 December 2022
- Food chains, along with food webs and food networks, describe the feeding relationships between species in a biotic community. In other words ...8 KB (1,247 words) - 10:18, 10 November 2023
- Nobelium (chemical symbol No, atomic number 102), also known as unnilbium (symbol Unb), is a synthetic element in the periodic table. A radioactive ...7 KB (962 words) - 02:34, 16 November 2022
- |- | align="center" colspan="2" bgcolor="#ffffff" | [[Image:Nitrous-oxide-3D-vdW.png|150px|Nitrous oxide - space ...20 KB (2,927 words) - 02:28, 16 November 2022
- Fullerenes are a family of carbon allotropes (other allotropes of carbon are graphite and diamond) consisting of molecules composed entirely ...28 KB (4,196 words) - 07:18, 15 April 2024
- Category:Public [[image:Edge_of_Space2.png|thumb|right|175px|Layers of Atmosphere (NOAA)]] The Earth's atmosphere is a layer of gases surrounding ...24 KB (3,540 words) - 17:34, 12 February 2024
- Ethane is a chemical compound with the chemical formula C2H6. It is classified as an alkane, that is, an aliphatic hydrocarbon. It is the only ...16 KB (2,309 words) - 01:40, 19 March 2022
- Greenhouse gases (GHGs) is the name given to a number of gases present in the earth's atmosphere which reduce the loss of heat into space ...34 KB (4,898 words) - 17:16, 16 February 2023
- Dry cleaning is any cleaning process for clothing and textiles using an organic solvent rather than water. The solvent is generally known as ...18 KB (2,825 words) - 21:15, 30 January 2024
- Steel is a metal alloy whose major component is iron, with carbon content between 0.02 and 1.7 percent by weight. Carbon is the most cost-effective ...29 KB (4,547 words) - 04:40, 28 April 2023
- |- | colspan="6" align="center" | *Boron-10 content may be as low as 19.1% and ashigh as 20.3% in natural samples. Boron-11 ...16 KB (2,239 words) - 19:45, 20 November 2023
- **The nucleus of a carbon-12 atom contains six protons and six neutrons (all fermions) and is also a boson. * A composite particle containing ...16 KB (2,185 words) - 17:26, 26 March 2024
- Noel Kempff Mercado National Park is a national park in Bolivia located in the northeastern portion of the Santa Cruz Department. It is one of ...13 KB (1,943 words) - 09:58, 11 March 2023
- Fossil fuels or mineral fuels are hydrocarbon fuels found within the top layer of the Earth’s crust. They range from highly volatile materials ...15 KB (2,136 words) - 06:36, 1 April 2024
- |- align = "center" | |width = "25"| | [[Image:Potentiometer symbol.svg|50px]] |- align = "center" | ...24 KB (3,494 words) - 19:43, 16 April 2023
- For a chemical reaction to take place, it requires a certain minimum amount of energy, called its activation energy. If a substance can lower ...12 KB (1,789 words) - 17:49, 30 November 2023
- The main group elements of the periodic table are groups 1, 2 and 13 through 18. Elements in these groups are collectively known as main group ...30 KB (4,368 words) - 00:41, 24 November 2022
- Category:Public number=12 | symbol=Mg | name=magnesium | left=sodium | right=aluminium | above=Be | below=Ca | color1=#ffdead | color2=black ...17 KB (2,430 words) - 10:49, 9 March 2023
- Talc (derived from the Persian via Arabic talq) is a mineral composed of magnesium silicate hydroxide. It is extremely soft, with a greasy feel ...8 KB (1,172 words) - 03:55, 27 February 2023
- A chemical reaction is a process that leads to the interconversion of chemical substances. [http://goldbook.iupac.org/C01033.html Chemical reaction ...12 KB (1,710 words) - 14:43, 5 December 2023
- Propylene glycol, also known by the systematic name propane-1,2-diol, is an organic compound with the chemical formula C3H8O2. Under standard ...12 KB (1,732 words) - 00:24, 2 December 2022
- Urea is an organic compound of carbon, nitrogen, oxygen, and hydrogen. Its chemical formula may be written as CO(NH2)2, CON2H4, or CN2H4O. It ...16 KB (2,391 words) - 13:44, 3 May 2023
- Palladium (chemical symbol Pd, atomic number 46) is a rare, silver-white metal. It is a member of the platinum group of elements and resembles ...13 KB (1,749 words) - 06:25, 18 November 2022
- <!-- Submit to get this template or go to :Template:Chembox_simple_organic. --> {| id="bioChemInfoBox" align="right" ...9 KB (1,271 words) - 23:04, 30 April 2023
- Essential oil is any concentrated, hydrophobic (immiscible with water), typically lipophilic (oil or fat soluble) liquid of plants that contains ...16 KB (2,270 words) - 12:06, 5 March 2021
- A bog is a freshwater wetland characterized by acidic peat deposits and by moisture provided by precipitation (rain and snow) rather than groundwater ...13 KB (1,940 words) - 00:02, 12 January 2023
- The term xylene refers to a group of three benzene derivatives, each of which has two methyl functional groups attached to the benzene ring. ...10 KB (1,443 words) - 09:56, 22 May 2023
- Category:Public number=74 | symbol=W | name=tungsten | left=tantalum | right=rhenium | above=Mo | below=Sg | color1=#ffc0c0 | color2=black ...17 KB (2,431 words) - 18:45, 2 May 2023
- Pyridine is a fundamentally important chemical compound with the formula C5H5N. It is a liquid with a distinctively putrid, fishy odor. Its molecules ...11 KB (1,458 words) - 03:38, 7 December 2022
- Methanol, also known as methyl alcohol, carbinol, wood alcohol, wood naphtha, or wood spirits, is the simplest alcohol. Its chemical formula ...20 KB (2,894 words) - 16:26, 9 November 2022
- Cyanobacteria (Greek: κυανόs (kyanós) = blue + bacterium) is a phylum (or "division") of bacteria that obtain their energy through ...12 KB (1,656 words) - 17:46, 12 May 2020
- The greenhouse effect is the process in which long wave radiation (infrared) emitted by the earth surface is absorbed by atmospheric gases only ...23 KB (3,592 words) - 23:26, 17 February 2023
- Calcite is a carbonate mineral and is among the most widely distributed minerals on the Earth's surface. Chemically, it is known as calcium ...7 KB (1,007 words) - 18:20, 25 November 2023
- Aniline, phenylamine, or aminobenzene is an organic compound with the formula C6H5NH2. It is an organic chemical compound, specifically an aryl ...13 KB (1,817 words) - 06:09, 28 July 2023
- Energy independence is self-sufficiency in terms of the availability of useful energy for the needs of a particular entity (nation, community ...14 KB (1,937 words) - 20:52, 8 February 2023
- Alveolus (plural: alveoli), or pulmonary alveolus, informally known as air sac, is any of the innumerable minuscule, thin-walled, capillary-rich ...10 KB (1,508 words) - 14:17, 2 July 2022
- In biology, detritus is dead organic material, as opposed to living organisms or inorganic matter. However, what specifically is included as ...17 KB (2,559 words) - 08:55, 15 January 2023
- Gravimetric analysis describes a set of methods in analytical chemistry for the quantitative determination of an analyte based on the mass of a solid. ...8 KB (1,266 words) - 19:27, 20 January 2023
- Peat is a dark, fibrous accumulation of partially decomposed and disintegrated organic matter found in wet areas, and usually comprising residues ...19 KB (2,935 words) - 17:10, 26 March 2023
- 6 (six) is a number, numeral, and glyph that represents the number. It is the natural number A natural number is any number that is a positive ...19 KB (2,695 words) - 06:47, 13 June 2023
- A fire extinguisher is an active fire protection device used to extinguish or control a fire, often in emergency situations. Typically, a fire ...15 KB (2,294 words) - 19:52, 26 March 2024
- The term chiral is used to describe an object that is not superposable on its mirror image. Human hands are perhaps the most universally recognized ...24 KB (3,570 words) - 17:06, 10 December 2023
- A geyser is a type of hot spring that erupts periodically, ejecting a column of hot water and steam into the air. The name geyser comes from ...16 KB (2,391 words) - 02:41, 6 December 2022
- the same ratio of carbon-14 to carbon-12 into their tissues and the animals eating the plants have a similar ratio in their tissues. After organisms ...30 KB (4,559 words) - 22:46, 7 December 2022
- Terpene is any of a large and varied class of hydrocarbons, with the molecular formula (C5H8)n, that are produced by a wide variety of plants ...11 KB (1,643 words) - 14:57, 30 April 2023
- Fire occupies a unique place in nature. It is not matter itself, but it involves the reaction of different types of matter to generate energy ...16 KB (2,510 words) - 19:51, 26 March 2024
- The lung is either of the two primary respiratory organs in air-breathing vertebrates. Its principal function is to transport oxygen from the ...13 KB (1,981 words) - 03:04, 5 November 2022
- Glycine is one of the 20 most common, natural, "proteinogenic" (literally, protein building) standard amino acids. It is the simplest ...10 KB (1,540 words) - 08:03, 24 January 2023
- Leucine is an α-amino acid that is found in most proteins and is essential in the human diet. It is similar to isoleucine and valine in being ...8 KB (1,156 words) - 22:03, 25 October 2022
- Chloroform, also known as trichloromethane and methyl trichloride, is a chemical compound with the formula CHCl3. At room temperature, it is ...14 KB (1,907 words) - 17:08, 10 December 2023
- Reductionism, in a philosophical context, is a theory that asserts that the nature of complex things is reduced to the nature of sums of simpler ...13 KB (1,960 words) - 02:59, 8 December 2022
- In human spaceflight, a life support system is a group of devices that allow a human to survive in outer space. Such a system normally supplies ...11 KB (1,632 words) - 01:14, 26 October 2022
- The term fiber (or fibre The spelling "fibre" is used in Commonwealth countries and sometimes in the United States as well. ...10 KB (1,428 words) - 17:32, 26 March 2024
- Bitumen is a mixture of dark, sticky, highly viscous organic liquids composed mainly of aromatic hydrocarbons. It is usually black or dark brown ...11 KB (1,560 words) - 23:49, 11 January 2023
- The Devonian period is an interval of about 57 million years defined on the geologic time scale as spanning roughly from 416 to 359 million years ...10 KB (1,511 words) - 05:54, 25 August 2020
- Benzene (also known as benzol or [6]-annulene) is a colorless, flammable, sweet-smelling liquid. It is a natural constituent of crude oil but ...21 KB (3,162 words) - 10:44, 28 September 2023
- Ribonucleic acid or RNA is a polymer or chain of nucleotide units, each comprising a nitrogenous base (adenine, cytosine, guanine, or uracil ...21 KB (3,210 words) - 21:06, 16 April 2023
- Weathering is the process of disintegration of rocks and soils and the minerals they contain through direct or indirect contact with the atmosphere ...18 KB (2,677 words) - 22:02, 11 June 2020
- Gas is one of the four major states or phases of matter, along with solid, liquid, and plasma. Each state is characterized by distinct physical ...20 KB (3,107 words) - 04:37, 18 April 2024
- Biochemistry (once known as physiological chemistry or biological chemistry) is the study of chemicals and chemical processes that occur in living ...24 KB (3,603 words) - 23:47, 11 January 2023
- Regolith is a layer of loose, heterogeneous material covering solid rock. It includes dust, soil, broken rock, and other related materials. It ...13 KB (1,996 words) - 03:04, 8 December 2022
- Silane is a chemical compound with the chemical formula SiH4. It is the silicon analog of methane and, like methane, it is a gas at ordinary ...8 KB (1,184 words) - 22:02, 29 January 2023
- Flywheel energy storage (FES) works by accelerating a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational ...17 KB (2,549 words) - 06:12, 1 April 2024
- A truck is a motorized vehicle usually used for transporting bulk goods, materials, or equipment. The word "truck" comes from the Greek ...14 KB (2,129 words) - 18:25, 2 May 2023
- From July 25 to September 23, 2001, red rain sporadically fell on the southern Indian state of Kerala. Heavy downpours occurred in which red ...21 KB (3,061 words) - 19:10, 16 April 2023
- Valine is an α-amino acid that is found in most proteins and is essential in the human diet. It is similar to leucine and isoleucine in being ...8 KB (1,183 words) - 14:14, 3 May 2023
- Lycopene is a bright red, fat-soluble carotenoid pigment and phytochemical, C40H56, found in tomatoes, watermelon, guava, and other red fruits ...20 KB (2,797 words) - 10:39, 9 March 2023
- Joseph Priestley (March 13, 1733 – February 8, 1804) was an English chemist, philosopher, dissenting clergyman, and educator. As an educator ...19 KB (2,767 words) - 04:54, 7 May 2024
- Lanthanum (chemical symbol La, atomic number 57) is a soft, silvery white metallic element. Found in combination with other rare earth elements ...11 KB (1,398 words) - 22:23, 22 October 2022
- Shale is the most common sedimentary rock. [http://wps.prenhall.com/esm_lutgens_foundations_3/0,6540,354318-,00.html Rocks: Materials of the Lithosphere: ...4 KB (524 words) - 12:21, 27 January 2023
- Category:Public number=8 | symbol=O | name=oxygen | left=nitrogen | right=fluorine | above=- | below=S | color1=#a0ffa0 | color2=green ...23 KB (3,469 words) - 06:02, 18 November 2022
- Uracil is one of the five main nucleobases found in the nucleic acids DNA and RNA. The others are adenine, cytosine, guanine, and thymine. However ...14 KB (1,996 words) - 19:37, 12 November 2022
- Photochemistry, a sub-discipline of chemistry, is the study of the interactions between atoms, molecules, and light (or electromagnetic radiation). ...4 KB (569 words) - 04:25, 24 November 2022
- with atmospheric nitrogen-14 to produce carbon-12 and tritium, as follows: C-12 + T -->:{| border="0" |- style="height:2em;" ...18 KB (2,638 words) - 16:50, 5 November 2022
- Carbon nanotubes (CNTs) are allotropes of carbon with molecular structures that are tubular in shape, having diameters on the order of a few ...62 KB (8,806 words) - 19:09, 26 November 2023
- Naphthalene (also known as naphthalin, naphthaline, moth ball, tar camphor, white tar, or albocarbon), is a crystalline, aromatic, white, solid ...13 KB (1,879 words) - 01:21, 11 November 2022
- Glycogen is the principal storage form of glucose (Glc) in animal cells, though it is also found in various species of microorganisms, such as ...15 KB (2,341 words) - 18:24, 30 August 2021
- Friedrich Wöhler (July 31, 1800 - September 23, 1882) was a German chemist who ushered in a new age of organic chemistry when he demonstrated ...14 KB (2,077 words) - 10:37, 17 October 2022
- Chlorine (chemical symbol Cl, atomic number 17) is a nonmetal that belongs to a group of chemical elements known as halogens. At ordinary temperatures ...15 KB (2,040 words) - 17:07, 10 December 2023
- Camphor is a waxy, white or transparent solid with a strong, aromatic odor. J. Mann, et al., Natural Products: Their Chemistry and Biological ...11 KB (1,519 words) - 18:58, 25 November 2023
- Category:Public [[Image:CordlessUniden-large.jpg|right|thumb|125px|Cordless handset]] The telephone (or phone) (from Greek: tele = far away; phone ...25 KB (3,620 words) - 02:57, 19 April 2023
- The haloalkanes (also known as halogenoalkanes or alkyl halides) are a group of chemical compounds, consisting of alkanes, such as methane or ...35 KB (5,199 words) - 23:36, 3 August 2023
- The term soft drink—more commonly known as soda, pop, or soda pop, in parts of the United States, Canada, and the U.K. Pop Vs. Soda, [http://popvssoda ...25 KB (3,852 words) - 15:05, 27 April 2023
- In general, an amplifier (or simply amp) is a device that changes, usually increases, the amplitude of a signal. The "signal" is usually ...18 KB (2,580 words) - 09:26, 18 June 2021
- A chemical equation is a symbolic representation of a chemical reaction, wherein one set of substances, called the reactants, is converted into ...12 KB (1,989 words) - 14:40, 5 December 2023
- Polychlorinated biphenyls (PCBs) are a class of organic compounds with 1 to 10 chlorine atoms attached to biphenyl and a general chemical formula ...24 KB (3,627 words) - 08:41, 24 November 2022
- Sir Humphry Davy, 1st Baronet, FRS (December 17, 1778 – May 29, 1829) was an esteemed British chemist and physicist, who vastly expanded chemical ...12 KB (1,863 words) - 20:56, 9 February 2024
- Yeasts are a phylogenetically diverse grouping of single-celled fungi. As members of the Kingdom Fungi, which also includes mushrooms, molds ...24 KB (3,421 words) - 09:54, 23 May 2023
- Category:Public [[Image:minerals.jpg|right|frame|An assortment of minerals. Photo from [http://volcanoes.usgs.gov/Products/Pglossary/mineral.html ...16 KB (2,351 words) - 18:48, 9 November 2022
- A chemical element, often called simply element, is the class of atoms which contain the same number of protons. An older definition refers to ...10 KB (1,624 words) - 14:39, 5 December 2023
- Balsa is the common name for a fast-growing, tropical American tree, Ochroma pyramidale (synonym O. lagopus), characterized by soft and light ...6 KB (941 words) - 04:22, 11 January 2023
- Cerium (chemical symbol Ce, atomic number 58) is a silvery metallic element that is a member of the lanthanide series of chemical elements. It ...15 KB (2,039 words) - 23:59, 3 December 2023
- In physics, there are two kinds of dipoles (from the Greek terms di(s)-, meaning "two," and polos, meaning "pivot" or "hinge ...20 KB (3,037 words) - 15:26, 29 January 2024
- Cookware and bakeware are categories of food preparation utensils commonly found in the kitchen. Cookware consists of cooking vessels, such as ...24 KB (3,711 words) - 20:23, 7 June 2023
- In chemistry, esters are organic compounds in which an organic group (symbolized by R' in this article) replaces the hydrogen atom of a ...11 KB (1,427 words) - 21:32, 20 March 2024
- A planarian is any flatworm (phylum Platyhelminthes) of the suborder (or order) Tricladida of the class Turbellaria. Primarily free-living, planarians ...7 KB (1,024 words) - 20:44, 9 April 2023
- In chemistry, chemical synthesis is the purposeful execution of one or more chemical reactions in order to get a product, or several products ...10 KB (1,522 words) - 14:47, 5 December 2023
- A space elevator is a proposed structure intended to transport material from the surface of a celestial body, particularly Earth, into space ...39 KB (5,875 words) - 15:17, 27 April 2023
- Fuel is any material that is burned or altered to obtain energy. Fuel releases its energy either through chemical means, such as combustion, ...10 KB (1,556 words) - 00:50, 18 October 2022
- Biofuel is defined as fuel derived from biological materials, including materials from organisms that died relatively recently and from the metabolic ...36 KB (5,134 words) - 17:54, 31 October 2023
- Electronegativity is one of the fundamental concepts for an understanding of chemical bonding. The first modern definition was suggested by Linus ...16 KB (2,171 words) - 15:58, 13 February 2024
- The term acid rain is commonly used to mean the deposition of acidic components in rain, snow, fog, dew, or dry particles. The more accurate ...13 KB (1,971 words) - 07:41, 14 June 2023
- Graphene is a one-atom-thick planar sheet of carbon atoms that are densely packed in a honeycomb crystal lattice. It can be thought of as an ...43 KB (6,272 words) - 12:18, 24 January 2023
- Coal is a black or brownish-black sedimentary rock composed primarily of carbon, along with other assorted substances, including sulfur. It is ...32 KB (4,888 words) - 22:13, 7 January 2024
- Category:Public number=20 | symbol=Ca | name=calcium | left=potassium | right=scandium | above=Mg | below=Sr | color1=#ffdead | color2=black ...18 KB (2,626 words) - 18:21, 25 November 2023
- Category:Politics and social sciences Category:Law [[Image:Komora gazowa.jpg|thumb|250 px|Gas chamber at Stutthof concentration camp.]] ...13 KB (1,978 words) - 04:37, 18 April 2024
- Category:Politics and social sciences Category:Archaeological sites Category:Anthropology [[Image:Lascaux 04.jpg|thumb|250px|Lascaux cave painting ...13 KB (2,142 words) - 17:47, 25 October 2022
- Geochronology is the science of determining the absolute ages of rocks, fossils, and sediments found on Earth. This field of science relies on ...10 KB (1,498 words) - 06:51, 18 April 2024
- Nitrogen (symbol N, atomic number 7) is the chief constituent of the Earth's atmosphere and a vital element in all known forms of life. ...22 KB (3,304 words) - 02:26, 16 November 2022
- In botany, the term evergreen refers to a tree, shrub, or other plant having foliage that persists throughout the year. This terminology includes ...11 KB (1,564 words) - 04:53, 6 April 2021
- In chemistry, a mixture is a material made by combining two or more different chemical substances (such as chemical elements and chemical compounds ...5 KB (683 words) - 19:22, 9 November 2022
- Igneous rocks form when magma (molten rock) cools and solidifies. The solidification process may or may not involve crystallization, and it may ...25 KB (3,680 words) - 13:42, 4 February 2023
- Kyudo (弓道) (The "Way of the Bow") is the Japanese art of archery. It is a Japanese martial art in which archers use a tall Japanese ...13 KB (2,130 words) - 04:14, 6 October 2022
- Black powder is the original gunpowder; it was one of the few known propellants and explosives until the middle of the nineteenth century. Since ...14 KB (2,154 words) - 14:28, 8 February 2022
- Acetaldehyde, sometimes known as ethanal, is an organic chemical compound with the formula CH3CHO (or MeCHO). It is a flammable liquid with a ...10 KB (1,279 words) - 07:33, 14 June 2023
- Salmonella (plural salmonellae, salmonellas, or salmonella) are any of the various rod-shaped, gram-negative bacteria that comprise the genus ...11 KB (1,577 words) - 01:52, 23 December 2022
- The Bering Sea is the northernmost part of the Pacific Ocean that comprises a deep water basin (the Aleutian Basin) that rises up through a narrow ...15 KB (2,176 words) - 11:00, 28 September 2023
- Amines are organic compounds and a type of functional group that contain nitrogen as the key atom. Structurally amines resemble ammonia, wherein ...18 KB (2,577 words) - 07:02, 25 July 2023
- The Atlantic Forest (Mata Atlântica in Portuguese) is a region of tropical and subtropical moist forest, tropical dry forest, tropical savannas ...10 KB (1,472 words) - 06:06, 21 August 2023
- A rock is a naturally occurring aggregate of minerals and mineral-like substances called mineraloids. Rocks are classified as igneous, sedimentary ...20 KB (3,012 words) - 02:25, 16 December 2022
- Sulfuric acid (or sulphuric acid in British English) is a strong mineral acid with the chemical formula H2SO4. It is soluble in water at all ...31 KB (4,778 words) - 21:53, 26 February 2023
- The B vitamins or vitamin B complex are a group of eight, chemically distinct, water-soluble vitamins that were once considered a single vitamin ...10 KB (1,497 words) - 20:40, 3 May 2023
- Cement, in the most general sense of the word, is a binder, a substance that sets and hardens independently, and can bind other materials together ...23 KB (3,479 words) - 23:48, 3 December 2023
- Sodium (chemical symbol Na, atomic number 11) is a member of a group of chemical elements known as alkali metals. Silvery in color, it is soft ...21 KB (3,204 words) - 21:54, 30 January 2023
- Foraminifera, abbreviated as forams, are single-celled amoeboid protists comprising the order Foraminiferida (or Foraminifera of supergroup Rhizaria ...14 KB (1,865 words) - 06:19, 1 April 2024
- Progesterone is a steroid hormone in mammals that is involved in the female menstrual cycle, pregnancy (supporting gestation), and embryogenesis ...17 KB (2,310 words) - 08:47, 28 June 2022
- Lysine is an α-amino acid that is present in many proteins, has low available concentration in certain popular agricultural crops, such as wheat ...10 KB (1,432 words) - 04:39, 5 November 2022
- <!-- Submit to get this template or go to :Template:Chembox simple organic. --> {|class="infobox" style="float:right;" ...15 KB (2,091 words) - 02:59, 24 November 2022
- Food chemistry is the study of chemical processes and interactions of the biological and nonbiological components of foods. It overlaps with ...10 KB (1,507 words) - 06:16, 1 April 2024
- An earth lodge is a semi-subterranean building covered partially or completely with earth, best known from the Native American cultures of the ...18 KB (2,809 words) - 17:35, 12 February 2024
- A smoke detector or smoke alarm is a device that detects smoke and issues an alarm to alert nearby people that there is a potential fire. A household ...15 KB (2,419 words) - 14:59, 27 April 2023
- Ethylene (or IUPAC name ethene) is a chemical compound with the formula C2H4. Each molecule contains a double bond between the two carbon atoms ...26 KB (3,781 words) - 04:36, 22 March 2024
- Sulfur or sulphur (see spelling below) (chemical symbol S, atomic number 16) is a yellow crystalline solid at ordinary temperatures and pressures ...22 KB (3,269 words) - 21:43, 26 February 2023
- Irish elk is the common name for an giant, extinct deer, Megaloceros giganteus, characterized by enormous antlers. This is the largest deer known ...14 KB (2,171 words) - 18:59, 7 February 2023
- <!-- Submit to get this template or go to :Template:Chembox_simple_organic. --> {|class="infobox" width="175" style ...14 KB (1,990 words) - 00:41, 3 May 2023
- Rhenium (chemical symbol Re, atomic number 75) is a silvery-white, lustrous, rare metal. Obtained as a byproduct of molybdenum refinement, it ...10 KB (1,384 words) - 20:01, 8 December 2022
- Chemical bond is the term used to describe the linkages between atoms joined together to form molecules or crystals. Chemical bonds are the result ...25 KB (3,936 words) - 14:39, 5 December 2023
- An explosive material is a material that either is chemically or otherwise energetically unstable or produces a sudden expansion of the material ...41 KB (6,258 words) - 23:56, 24 March 2024
- The gas constant (also known as the molar, universal, or ideal gas constant) is a physical constant that is featured in a number of fundamental ...9 KB (1,458 words) - 04:37, 18 April 2024
- 10 (ten) is a natural number A natural number is any number that is a positive integer, such as 1, 2, 3, 4, and so forth. Often, the number 0 ...13 KB (1,819 words) - 06:26, 13 June 2023
- The Bandiagara Escarpment is a sandstone cliff in the Dogon country of Mali that rises almost 1,640 feet (500 m) above the lower sandy flats ...14 KB (2,194 words) - 03:27, 17 September 2023
- Category:Public number=54 | symbol=Xe | name=xenon | left=iodine | right=cesium | above=Kr | below=Rn | color1=#c0ffff | color2=green ...13 KB (1,905 words) - 14:16, 20 May 2023
- Air pollution is the human introduction into the atmosphere of chemicals, particulate matter, or biological materials that cause harm or discomfort ...34 KB (4,855 words) - 07:00, 16 June 2023
- Silicones (more accurately called polymerized siloxanes or polysiloxanes) are mixed inorganic-organic polymers. Their general chemical formula ...15 KB (2,090 words) - 22:06, 29 January 2023
- Molybdenum (chemical symbol Mo, atomic number 42) is a silvery white, soft metal. It has one of the highest melting points of all pure elements ...14 KB (1,925 words) - 19:51, 9 November 2022
- Fibers (or fibres) form a class of hair-like materials that occur as continuous filaments or in discrete elongated pieces, similar to pieces ...6 KB (832 words) - 15:18, 11 November 2022
- Albert Arnold "Al" Gore, Jr. (born March 31, 1948) was the forty-fifth Vice President of the United States, serving from 1993 to 2001 ...32 KB (4,643 words) - 04:21, 17 June 2023
- Acetic acid, also known as ethanoic acid, is an organic chemical compound best recognized for giving vinegar its sour taste and pungent smell ...35 KB (5,135 words) - 07:33, 14 June 2023
- Hydroelectricity is electricity produced by hydropower—that is, the energy of moving water. It is the world's leading form of renewable ...23 KB (3,052 words) - 21:35, 9 February 2024
- Checkers, also called English draughts, American checkers, or straight checkers, is a form of the draughts board game played on an eight-by-eight ...11 KB (1,707 words) - 18:36, 13 February 2024
- Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. As the existence ...54 KB (8,172 words) - 20:44, 9 April 2023
- Red blood cell, or erythrocyte, is a hemoglobin-containing blood cell in vertebrates that transports oxygen and some carbon dioxide to and from ...16 KB (2,383 words) - 02:30, 8 December 2022
- An atom (Greek άτομον from ά: non and τομον: divisible) is a submicroscopic structure found in all ordinary matter. Originally the ...13 KB (2,062 words) - 06:25, 21 August 2023
- Nanotechnology is a field of applied science and technology covering a broad range of topics. The main unifying theme is the control of matter ...39 KB (5,416 words) - 02:44, 11 March 2023
- Recombinant DNA is a form of genetically engineered DNA that is created by taking DNA strands from one organism and combining or inserting these ...13 KB (1,928 words) - 21:12, 23 July 2022
- Sodium hydroxide, also known as lye or caustic soda, is a caustic metallic base. Its chemical formula is NaOH. Forming a strongly alkaline solution ...19 KB (2,762 words) - 15:05, 27 April 2023
- Category:Public [[Image:nervoussystem.jpg|thumb|right|200px|Nervous system. Courtesy of 3DScience.com]] As commonly defined, the human body is ...25 KB (3,706 words) - 21:55, 23 December 2020
- Category:Public [[Image:GreenPaintBucketRome.jpg|thumb|right|200px|Dried green paint]] Paint is the general term for a family of products used ...12 KB (1,860 words) - 06:16, 18 November 2022
- Category:Archaeological sites {{Infobox World Heritage Site | WHS = Stonehenge, Avebury and Associated Sites | Image = [[Image:Avebury ...18 KB (2,901 words) - 07:14, 23 August 2023
- Category:Public [[Image:VacuumToCopier.jpg|thumb|right|250px|Plastics have become an indispensable part of our technological society.]] ...34 KB (5,272 words) - 07:59, 24 November 2022
- Svante August Arrhenius (February 19, 1859 – October 2, 1927) was a Swedish chemist and one of the founders of the science of physical chemistry ...15 KB (2,260 words) - 00:32, 27 February 2023
- *The nucleus of a carbon-12 atom contains 6 protons and 6 neutrons (all fermions) and is therefore a boson *The atom helium-4 (4He) is made of ...10 KB (1,425 words) - 17:22, 22 December 2022
- Water purification is the process of removing contaminants from a raw water source. The goal is to produce water for a specific purpose with ...30 KB (4,619 words) - 23:17, 3 May 2023
- Toluene, also known as methylbenzene or phenylmethane, is a clear, water-insoluble liquid with the typical smell of paint thinners, redolent ...10 KB (1,406 words) - 03:55, 1 May 2023
- |- | colspan="6" align="center" | 6Li content may be as low as 3.75% innatural samples. 7Li would thereforehave a content ...16 KB (2,302 words) - 04:29, 29 October 2022
- Praseodymium Praseodymium is frequently misspelled as praseodynium. (chemical symbol Pr, atomic number 59) is a soft silvery metallic element ...12 KB (1,535 words) - 22:14, 30 November 2022
- Cloud seeding, a form of weather modification, is the attempt to change the amount or type of precipitation that falls from clouds, by dispersing ...17 KB (2,393 words) - 22:12, 7 January 2024
- <!-- Submit to get this template or go to :Template:Chembox simple organic. --> {|class="infobox" width="225" style ...18 KB (2,592 words) - 18:31, 2 May 2023
- Category:Public color = lightblue | name = Fungi image = [[Image:Fungus on log.jpg|200px|Orange saprotrophic fungus]]| caption = Orange saprotrophic ...13 KB (1,974 words) - 08:09, 4 December 2023
- Photocopying is a process that makes paper copies of documents and other visual images quickly and cheaply. Most current photocopiers use a technology ...16 KB (2,312 words) - 22:46, 28 March 2023
- Corrosion is the deterioration of a material's essential properties as a result of reactions with its environment. It can be concentrated ...20 KB (3,072 words) - 03:36, 8 January 2024
- A fuel cell is an electrochemical device that converts chemical energy into electricity. It is made up of two electrodes, each coated with a ...40 KB (5,810 words) - 07:10, 15 April 2024
- Natural gas in the broad sense is a gaseous material consisting primarily of methane and deriving from one of three main types of sources: deeply ...25 KB (3,786 words) - 04:20, 11 March 2023
- In physics and cosmology, the anthropic principle encompasses diverse explanations about the structure of the universe that open the question ...36 KB (5,492 words) - 06:15, 31 July 2023
- Vasily Semyonovich Grossman (first name alternatively spelled as Vassily or Vasiliy, Василий Семёнович Гроссман ...10 KB (1,566 words) - 16:18, 14 November 2022
- Materials science is an interdisciplinary field involving the study of different types of materials and the applications of knowledge about these ...17 KB (2,292 words) - 16:49, 7 November 2022
- Valerie June Carter Cash (June 23, 1929 – May 15, 2003) was a singer, songwriter, actress, and comedian. She was a member of the famed pioneer ...8 KB (1,302 words) - 21:16, 4 October 2022
- Blood is a highly specialized, circulating tissue that consists of several types of cells suspended in a fluid medium. Along with the heart ...16 KB (2,426 words) - 18:13, 31 October 2023
- Jericho (Arabic أريحا, ʼArīḥā; Hebrew יְרִיחוֹ, Standard Yəriḥo Tiberian Yərîḫô / Yərîḥô; meaning "fragrant," ...16 KB (2,400 words) - 02:27, 1 August 2022
- Potassium (chemical symbol K, atomic number 19) is a member of a group of chemical elements known as alkali metals. It is a soft metal and is ...18 KB (2,538 words) - 05:52, 30 November 2022
- Category:Public {| class="toccolours" border="1" style="float: right; clear: right; margin: 0 0 1em 1em; border-collapse: ...30 KB (4,607 words) - 06:05, 18 November 2022
- A typewriter is a mechanical, electromechanical, or electronic device with a set of "keys" that, when pressed, lead to the printing ...36 KB (5,574 words) - 00:40, 3 May 2023
- A polymer (from the Greek words polys, meaning "many," and meros, meaning "parts") is a chemical compound consisting of large ...26 KB (3,690 words) - 08:46, 24 November 2022
- Mauna Loa is the largest volcano on earth. It is an active shield volcano, with a volume estimated at approximately 18,000 cubic miles (75,000 km³), ...18 KB (2,821 words) - 16:58, 7 November 2022
- Titanium (chemical symbol Ti, atomic number 22) is a silvery-white, lustrous metal. Light and strong, it is resistant to corrosion, including ...27 KB (3,874 words) - 03:49, 1 May 2023
- A volcano is an opening, or rupture, in the Earth's surface or crust, which allows hot, molten rock, ash, and gases to escape from deep ...32 KB (4,841 words) - 20:59, 3 May 2023
- Bakelite is a material based on a thermosetting phenol formaldehyde resin developed in 1907–1909, by the Belgian-American chemist Leo Baekeland ...6 KB (839 words) - 05:49, 26 August 2023
- BP p.l.c., previously known as British Petroleum, is the third largest global energy company, a multinational oil company ("oil major" ...36 KB (5,440 words) - 05:21, 26 August 2023
- Welding is a fabrication process that joins materials, usually metals or thermoplastics, by causing coalescence. It is often done by melting ...41 KB (6,376 words) - 23:28, 3 May 2023
- Renewable energy is a term for any useable energy that is harnessed from natural resources that are either essentially inexhaustible (such as ...57 KB (8,258 words) - 20:49, 29 April 2020
- In science and technology, a battery is a device that stores chemical energy and makes it available in an electrical form. Batteries consist ...31 KB (4,897 words) - 11:28, 20 September 2023
- Glycerol, also known as glycerin or glycerine, is a sugar alcohol. Its formula may be written as C3H8O3. It is a colorless, odorless, viscous ...17 KB (2,494 words) - 18:22, 30 August 2021
- The incandescent light bulb or incandescent lamp is a source of artificial light that works by incandescence. An electrical current passes through ...44 KB (6,810 words) - 12:43, 4 March 2024
- November 7, 2008., eq. (63) As the carbon-12 and oxygen-16 which predominantly compose a carbon-oxygen white dwarf both have atomic number equal ...72 KB (10,792 words) - 18:14, 4 May 2023
- If a sample of material decays at a certain rate over time, its half-life is defined as the time it takes for the sample to decay to half its ...8 KB (1,160 words) - 16:04, 3 August 2023
- Nitrogen dioxide is a chemical compound with the formula NO2. It is one of the several nitrogen oxides. At ordinary temperatures and atmospheric ...7 KB (934 words) - 02:27, 16 November 2022
- Bismuth (chemical symbol Bi, atomic number 83) is a brittle, white crystalline metal with a pink tinge. It acquires an iridescent oxide tarnish ...14 KB (1,891 words) - 17:59, 31 October 2023
- DEET is a chemical, N, N-Diethyl-m-toluamide, that acts as an insect repellent to prevent bites from mosquitoes, fleas, biting flies, and other ...16 KB (2,347 words) - 08:37, 15 January 2023
- Pole vaulting, a part of track and field, is a rigorous and demanding athletic event in which a person uses a long, flexible pole (which today ...22 KB (3,728 words) - 00:14, 12 April 2023
- Choline is a water-soluble organic compound that is classified as an essential nutrient for humans (Higdon and Drake 2008; PDR 2008; Swan and ...15 KB (2,128 words) - 23:57, 13 January 2023
- Sir William Henry Bragg (July 2, 1862 – March 10, 1942) was an English physicist who, independently and in partnership with his son, William ...13 KB (1,944 words) - 18:22, 17 April 2023
- Ecology or ecological science, is the scientific study of the distribution and abundance of living organisms and how these properties are affected ...38 KB (5,612 words) - 18:02, 12 February 2024
- An abrasive is a material, often a mineral, that is used to shape or finish a piece of work through rubbing which leads to part object being ...20 KB (3,070 words) - 06:35, 14 June 2023
- The forge or smithy is the workplace of a smith or a blacksmith. Forging is the term for shaping metal by plastic deformation. Cold forging is ...15 KB (2,453 words) - 06:32, 1 April 2024
- Phosphorus (chemical symbol P, atomic number 15) is a multivalent nonmetal that belongs to the nitrogen group of chemical elements. Given its ...25 KB (3,622 words) - 22:45, 28 March 2023
- The Gaia hypothesis is a class of scientific models of the geo-biosphere in which life as a whole fosters and maintains suitable conditions for ...30 KB (4,599 words) - 11:57, 4 December 2023
- Petroleum (Latin Petroleum derived from Greek πέτρα (Latin petra) - rock + έλαιον (Latin oleum) - oil) or crude oil is a naturally ...42 KB (6,126 words) - 14:48, 28 March 2023
- Hafnium (chemical symbol Hf, atomic number 72) is a lustrous, silvery gray metal. Chemically, it resembles zirconium and is found in zirconium ...10 KB (1,277 words) - 16:40, 21 January 2024
- Electrochemistry is a branch of chemistry involving the study of interrelationships between electricity and chemical reactions. The chemical ...56 KB (8,590 words) - 15:53, 13 February 2024
- A nucleotide is a chemical compound with three components: a nitrogen-containing base, a pentose (five-carbon) sugar (relatively simple carbohydrates ...18 KB (2,589 words) - 10:10, 11 March 2023
- 4 (four) is a number, numeral, and glyph that represents the number. It is the natural number A natural number is any number that is a positive ...24 KB (3,319 words) - 06:45, 13 June 2023
- Corn syrup is any of a variety of forms of syrup (thick, viscous liquid, containing a large amount of dissolved sugars, with little tendency ...18 KB (2,609 words) - 23:23, 6 April 2022
- Karst topography is a three-dimensional landscape shaped by the dissolution of a soluble layer or layers of bedrock, usually carbonate rock such ...14 KB (1,944 words) - 20:16, 28 February 2023
- |of carbon-12||M(\,^{12}\mbox{C}) = N_A m(\,^{12}\mbox{C})||12 × 10-3 kg · mol−1||defined |- |colspan=2|standard acceleration of gravity ...22 KB (3,290 words) - 05:07, 24 November 2022
- Venus is the second-closest planet to the Sun, orbiting it every 224.7 Earth days. After Earth's Moon, it is the brightest object in the ...45 KB (7,026 words) - 17:37, 3 May 2023
- Terraforming (literally, "Earth-shaping") of a planet, moon, or other body is the hypothetical process of deliberately modifying its ...32 KB (4,766 words) - 14:58, 30 April 2023
- Random access memory (also hyphenated as random-access memory), usually known by its acronym RAM, is a class of media used in computers for data ...15 KB (2,297 words) - 17:22, 16 April 2023
- The Gospel of Judas, a second century Gnostic gospel, was discovered in the twentieth century and publicly unveiled in 2006. It portrays the ...24 KB (3,824 words) - 19:38, 8 June 2023
- Parasitism is a type of symbiosis that may be defined as an interspecific association in which one species, the parasite, lives on or in a second ...17 KB (2,521 words) - 07:50, 18 November 2022
- Galactosemia is a rare genetic metabolic disorder that affects an individual's ability to properly metabolize the sugar galactose. The disease ...8 KB (1,106 words) - 03:47, 18 April 2024
- Category:Public {| class="toccolours" border="1" style="float: right; clear: right; margin: 0 0 1em 1em; border-collapse: ...31 KB (4,564 words) - 09:39, 22 April 2023
- Diesel, or diesel fuel, is any fuel that is used to operate a diesel engine. Most commonly, it refers to a specific liquid fuel obtained by the ...30 KB (4,446 words) - 14:28, 29 January 2024
- A microphone, sometimes referred to as a mike or mic, is a device that converts sound into electrical signals. In more technical terms, it may ...49 KB (7,389 words) - 10:39, 10 March 2023
- In zoology, the placenta is a temporary vascular organ that forms in the uterus of female placental mammals during pregnancy and, via an umbilical ...25 KB (3,557 words) - 20:43, 9 April 2023
- Space colonization (also called space settlement, space humanization, or space habitation) is the concept of permanent, autonomous (self-sufficient ...37 KB (5,482 words) - 22:47, 5 February 2023
- An electron microscope is a type of microscope that uses electrons to illuminate a specimen and create an enlarged image. Electron microscopes ...20 KB (2,873 words) - 15:58, 13 February 2024
- George Pratt Shultz (/ʃʊlts/; December 13, 1920 – February 6, 2021) was an American economist, diplomat, and businessman. He served in various ...47 KB (6,417 words) - 08:10, 23 January 2023
- In chemistry, epoxy (or polyepoxide) is the name for a group of thermosetting resins (polymers) that are formed from building blocks (monomers ...16 KB (2,301 words) - 19:13, 13 February 2024
- Gunpowder is a low-explosive substance that is used as a propellant in firearms. It burns rapidly and produces a large amount of gas, which produces ...24 KB (3,604 words) - 17:15, 12 July 2023
- In anatomy, the heart is the muscular, pumping organ of the closed circulatory system of all vertebrates and some invertebrates (annelids and ...17 KB (2,703 words) - 15:12, 25 January 2023
- Cosmic rays are energetic particles originating from space that impinge on Earth's atmosphere. Almost 90 percent of all the incoming cosmic ...37 KB (5,720 words) - 08:13, 10 January 2024
- An elastomer is a polymer with the property of elasticity. In other words, it is a polymer that deforms under stress and returns to its original ...7 KB (1,017 words) - 07:38, 10 August 2023
- Transport or transportation is the movement of people and goods from one place to another. The term is derived from the Latin trans ("across ...28 KB (4,136 words) - 02:08, 2 May 2023
- Gonorrhea is a common, highly contagious, sexually transmitted diseases (STD) that is caused by the Gram-negative bacterium Neisseria gonorrhoeae ...15 KB (2,205 words) - 11:56, 24 January 2023
- Niacin, also known as nicotinic acid or vitamin B3, is a vitamin whose derivatives NAD, NADH, NAD+, and NADP play essential roles in energy metabolism ...11 KB (1,605 words) - 09:41, 11 March 2023
- Zeolites are an extremely useful group of minerals characterized by a microporous structure—that is, a structure with minute pores. Chemically ...15 KB (2,158 words) - 05:51, 13 June 2023
- Ammonia is a chemical compound of nitrogen and hydrogen, with the formula NH3. It is a gas at standard temperature and pressure In this case, ...39 KB (5,803 words) - 07:35, 25 July 2023
- In biology and ecology, an organism (in Greek organon = instrument) is an organized, individual living system (such as animal, plant, fungus ...36 KB (5,345 words) - 01:14, 18 November 2022
- Climate Change, in its broadest sense, is any change in the state of the climate or climate system that persists for an extended time period ...86 KB (12,789 words) - 20:17, 1 June 2023
- The Russell Cave National Monument is a United States National Monument in northeastern Alabama, United States, just south of the Alabama-Tennessee ...23 KB (3,387 words) - 23:06, 21 October 2023
- Space manufacturing involves the production of manufactured goods in an environment outside a planetary atmosphere. Typically, it includes conditions ...17 KB (2,555 words) - 19:04, 7 February 2023
- Cadmium (chemical symbol Cd, atomic number 48) is a relatively rare, soft, bluish-white metal. Its chemical properties are similar to those of ...16 KB (2,248 words) - 10:14, 25 November 2023
- Antoine-Laurent de Lavoisier (August 26, 1743 – May 8, 1794) was a French nobleman who, along with John Dalton and Jöns Jakob Berzelius, is ...17 KB (2,470 words) - 06:42, 31 July 2023
- Sewage treatment, or domestic wastewater treatment, is the process of removing contaminants from wastewater and household sewage, both runoff ...40 KB (5,900 words) - 10:11, 26 January 2023
- Ethanol, also known as ethyl alcohol, drinking alcohol, or grain alcohol, is a flammable, colorless, slightly toxic chemical compound with a ...49 KB (7,279 words) - 04:30, 22 March 2024
- Surfing is a surface water sport in which the participant is carried along the face of a breaking wave as it approaches shore, usually on a surfboard ...15 KB (2,531 words) - 23:54, 26 February 2023
- Mount Rainier is a stratovolcano in Washington state, located 54 miles (87 km) southeast of the city of Seattle. In Pierce County, it is contained ...24 KB (3,759 words) - 17:43, 10 November 2022
- A candle (from the Latin word candere, meaning "to shine") is a light source that usually has an internal wick rising through the center ...26 KB (4,080 words) - 19:18, 25 November 2023
- Category:Politics and social sciences Category:Archaeological sites Category:Anthropology Category:Art [[Image:Chauvethorses.jpg|thumb|right|Drawing ...17 KB (2,637 words) - 00:45, 5 December 2023
- Robert Wilhelm Eberhard Bunsen (March 31, 1811 - August 16, 1899) was a German chemist who contributed to the development of spectroscopy as ...8 KB (1,189 words) - 20:25, 11 August 2022
- Category:Politics and social sciences Category:Anthropology Category:Archaeology [[Image:Mummy 501594 fh000031.jpg|thumb|375px|A mummy in the ...24 KB (3,616 words) - 02:34, 11 March 2023
- An engine is a machine that can convert some form of energy (obtained from a fuel) into useful mechanical power or motion. If the engine produces ...16 KB (2,420 words) - 18:34, 13 February 2024
- Botany is the branch of biology dealing with the scientific study of plant life. It is also sometimes referred to as plant science(s) or plant ...17 KB (2,438 words) - 19:52, 20 November 2023
- Uranus is the seventh planet from the Sun. It is the third largest by diameter and fourth largest by mass. Uranus is similar in composition to ...17 KB (2,530 words) - 13:36, 3 May 2023
- An automobile (or motor car) is a wheeled passenger vehicle that carries its own motor. Most definitions of the term specify that automobiles ...30 KB (4,553 words) - 07:06, 23 August 2023
- Tuna is any of 14 species of ocean-dwelling fish comprising the tribe Thunnini in the family Scombridae (the mackerel family). The 14 species ...16 KB (2,306 words) - 18:43, 2 May 2023
- The Galilean moons are the four moons of Jupiter discovered by Galileo Galilei. They are the largest of the many moons of Jupiter and have been ...25 KB (3,695 words) - 03:54, 18 April 2024
- Viscosity is a measure of the resistance of a fluid to deform under either shear stress or extensional stress. It is commonly perceived as ...36 KB (5,462 words) - 20:38, 3 May 2023
- Soil is the mixture of minerals, organic matter, liquids, and gases covering most of the Earth's land surface and that serves, or has the ...27 KB (4,112 words) - 15:59, 14 October 2022
- A seed is the ripened ovule of gymnosperm or angiosperm plants. In angiosperms, or flowering plants, the ovule is found within an ovary, which ...9 KB (1,464 words) - 02:24, 30 September 2022
- Deuterium (chemical symbol D or ²H) is a stable isotope of hydrogen, found in extremely small amounts in nature. The nucleus of deuterium, called ...31 KB (4,687 words) - 10:07, 29 January 2024
- A lichen is a composite organism composed of a fungus (the mycobiont) in a symbiotic relationship with a photosynthetic partner (the photobiont ...19 KB (2,789 words) - 22:35, 25 October 2022
- Electrical resistivity (also known as specific electrical resistance) is a measure of how strongly a material opposes the flow of electric current ...10 KB (1,366 words) - 04:13, 8 December 2022
- A fractal is an irregular geometric shape that can be divided into parts in such a manner that the shape of each part resembles the shape of ...19 KB (2,648 words) - 06:39, 1 April 2024
- Gasoline (also called gas, petrol, or petrogasoline) is a petroleum-derived liquid mixture consisting mostly of aliphatic hydrocarbons, enhanced ...47 KB (6,891 words) - 04:38, 18 April 2024
- Category:Public [[Image:Infrared_dog.jpg|thumb|right|332px|Image of a small dog taken in mid-infrared ("thermal") light (false color).]] ...10 KB (1,429 words) - 19:21, 5 March 2024
- In nanotechnology, a particle is defined as a small object that behaves as a whole unit in terms of its transport and properties. Particles are ...18 KB (2,579 words) - 01:19, 11 November 2022
- Texas is a state located in the south-central United States. Austin is the state capital and it is nicknamed the Lone Star State. Texas—the ...36 KB (5,158 words) - 15:02, 30 April 2023
- The International Astronomical Union (IAU) defines "planet" as a celestial body that, within the solar system,[http://www.iau.org/news/press ...37 KB (5,416 words) - 07:49, 24 November 2022
- Phenol, also known under an older name of carbolic acid, is a toxic, colorless crystalline solid with a distinctive sweet tarry odor. Its chemical ...8 KB (1,204 words) - 02:56, 24 November 2022
- Athletics, also known as track and field or track and field athletics, is a collection of sports events that involve running, throwing, and jumping ...27 KB (4,185 words) - 05:55, 21 August 2023
- An azeotrope is a mixture of two or more liquid substances in such a ratio that the composition of the mixture is not changed by simple distillation ...29 KB (4,494 words) - 07:29, 23 August 2023
- The Great Lakes region includes much of the Canadian province of Ontario and portions of eight U.S. states that border the Great Lakes: New York ...23 KB (3,330 words) - 22:50, 21 January 2023
- Mars is the fourth planet from the Sun in our solar system and is named after the Roman god of war. It is also known as the "Red Planet ...47 KB (7,206 words) - 16:13, 6 November 2022
- Molds (American English) or moulds (British English) are microscopic, multicellular fungi. They are generally composed of hyphae (filamentous ...9 KB (1,390 words) - 19:49, 9 November 2022
- Bread is a staple food prepared from a dough of flour (usually wheat) and water, usually by baking. It is one of the oldest human-made foods ...36 KB (5,350 words) - 22:56, 20 November 2023
- In astrophysics, weakly interacting massive particles, or WIMPs, are hypothetical particles serving as one possible solution to the dark matter ...10 KB (1,576 words) - 23:22, 3 May 2023
- <!-- New version: {{Number|number=9 | 9 | prev = 8 | next = 10 | range = (digits) | cardinal = 9 nine | ordinal = 9th | ordinal_text = ninth ...22 KB (2,900 words) - 06:48, 13 June 2023
- The sea in a general sense refers to the ocean or world ocean, the body of salty water that covers approximately 71 percent of the Earth's ...69 KB (10,326 words) - 23:04, 22 April 2023
- Nutmeg is the common name for a dark-leaved evergreen tree, Myristica fragans, that is cultivated for two spices derived from its fruit, "nutmeg ...17 KB (2,574 words) - 10:12, 11 March 2023
- Alternative energy is a term for any nontraditional energy form, source, or technology differing from the current popular forms, sources, or ...73 KB (10,796 words) - 08:37, 23 July 2023
- ArcelorMittal ( MT , MT , LU0323134006|MTS , MT ) is the largest steel company in the world, with 310,000 employees in more than 60 countries. ...21 KB (2,936 words) - 06:14, 12 August 2023
- Aluminum (or aluminium) (chemical symbol Al, atomic number is 13) is a soft, lightweight metal with a silvery appearance and the ability to resist ...38 KB (5,676 words) - 08:41, 23 July 2023
- Flour is a finely ground powdery foodstuff obtained by grinding cereal grains or other edible, starchy portions of plants and used chiefly in ...20 KB (3,186 words) - 08:08, 21 May 2021
- A savanna or savannah is a tropical or subtropical woodland ecosystem characterized by the trees being sufficiently small or widely spaced so ...28 KB (4,082 words) - 17:06, 23 December 2022
- The Sun is the star at the center of the Earth's solar system. The Earth and other matter (including other planets, asteroids, comets, ...52 KB (7,953 words) - 22:23, 26 February 2023
- Jöns Jakob Berzelius (August 20, 1779 – August 7, 1848) was a Swedish chemist. Adversity in childhood fostered within Berzelius an independent ...9 KB (1,392 words) - 21:46, 4 October 2022
- Category:Public [[Image:Gem.pebbles.800pix.labelled.jpg|right|thumb|300px|A selection of gemstone pebbles made by tumbling rough rock with abrasive ...19 KB (2,649 words) - 06:40, 18 April 2024
- Maple syrup is a sweet syrup (thick, sticky solution of sugar and water) made by concentrating the sap of maple trees. In particular, maple syrup ...18 KB (2,816 words) - 11:09, 9 March 2023
- A forest is a type of ecosystem in which there is high density of trees occupying a relatively large area of land. An ecosystem is an ecological ...22 KB (3,182 words) - 06:31, 1 April 2024
- Environmental science is the study of interactions among the physical, chemical, and biological components of the environment. It provides an ...11 KB (1,440 words) - 19:02, 13 February 2024
- A carburetor (North American spelling), or carburettor (Commonwealth spelling), is a device that blends air and fuel (usually gasoline) for an ...26 KB (4,190 words) - 19:11, 26 November 2023
- Enrico Fermi (September 29, 1901 – November 28, 1954) was an Italian physicist most noted for his work on the development of the first nuclear ...25 KB (3,781 words) - 18:56, 13 February 2024
- The Mesozoic (from the Greek prefix meso meaning “between” and zoon, animal or "living being") era is an interval of about 186 ...11 KB (1,570 words) - 10:34, 10 March 2023
- An electric motor converts electrical energy into kinetic energy. The reverse task, that of converting kinetic energy into electrical energy ...46 KB (7,150 words) - 00:15, 13 February 2024
- Jupiter is the fifth planet from the Sun and the largest in the Solar System. Jupiter and the other gas giants—Saturn, Uranus, and Neptune—are ...33 KB (5,016 words) - 16:30, 14 May 2024
- Electronic waste, "e-waste," or "Waste Electrical and Electronic Equipment" ("WEEE") is a waste type consisting ...10 KB (1,429 words) - 16:03, 13 February 2024
- |- | align="center" colspan="2" bgcolor="#ffffff" | [[Image:Phosphoric-acid-2D-dimensions.png|160px|Phosphoric acid]] ...23 KB (3,466 words) - 04:24, 24 November 2022
- A star is a massive, luminous ball of plasma that is held together by its own gravity. The nearest star to Earth is the Sun, which is the source ...80 KB (12,078 words) - 15:50, 27 April 2023
- Bromine (chemical symbol Br, atomic number 35) is a nonmetal that belongs to a group of chemical elements known as halogens. It is the only liquid ...10 KB (1,346 words) - 04:33, 22 November 2023
- Cell biology or cellular biology (formerly cytology, from the Greek kytos, "container") is an academic discipline that studies cells ...11 KB (1,596 words) - 23:46, 3 December 2023
- In biology, transcription is the cellular process of synthesizing RNA based on a DNA template. DNA transcription generates the information-carrying ...18 KB (2,706 words) - 17:57, 4 November 2022
- Emerald (from the Greek word smaragdos, through the French esmeralde, meaning "green gemstone") is a green variety of the mineral beryl ...10 KB (1,413 words) - 15:17, 31 December 2021
- A space habitat, also called a space colony, orbital colony, space city, or space settlement, is a space station intended as a permanent settlement ...20 KB (3,078 words) - 19:03, 7 February 2023
- Embryophyta is a major grouping of plants, sometimes known as "land plants," that includes both the non-vascular bryophytes (mosses ...11 KB (1,564 words) - 10:22, 21 January 2023
- Rain is a form of precipitation—other forms of which include snow, sleet, and hail. Rain forms when separate drops of water fall to the Earth ...11 KB (1,714 words) - 00:07, 8 December 2022
- Niobium or columbium (chemical symbol Nb, atomic number 41) is a rare, soft, gray metal. It was discovered in a variety of columbite (now called ...14 KB (1,909 words) - 04:59, 15 November 2022
- Yukon, also known as the "Yukon Territory," is one of Canada's three most northern arctic territories (the other two being the ...24 KB (3,529 words) - 21:38, 4 June 2023
- The muskrat or musquash (Ondatra zibethicus), the only species in genus Ondatra, is a medium-sized semi-aquatic rodent native to North America ...10 KB (1,517 words) - 02:38, 11 March 2023
- Carl Edward Sagan (November 9, 1934 – December 20, 1996) was an American astronomer and astrochemist and a highly successful popularizer of ...18 KB (2,690 words) - 12:47, 27 November 2023
- Category:Politics and social sciences Category:Anthropologists Category:Image wanted Leakey, Louis [[Image:Louis Leakey.jpg|thumb|250 px|Louis ...10 KB (1,575 words) - 02:54, 4 November 2022
- Main sequence is the class name for stars that occupy a continuous distinctive band formed by plotting stellar color versus brightness for a ...39 KB (5,825 words) - 10:55, 9 March 2023
- Paleoanthropology is a sub-discipline of anthropology and paleontology, and is also known as human anthropology. Studying hominid fossil evidence ...20 KB (2,921 words) - 11:00, 11 March 2023
- Lake Ontario is the smallest and most easterly of the Great Lakes of North America. It is bounded on the north by the Canadian province of Ontario ...15 KB (2,243 words) - 23:19, 21 October 2022
- A pigment is a material that changes the color of light it reflects as the result of selective color absorption. This physical process differs ...29 KB (4,213 words) - 06:14, 24 November 2022
- Category:Politics and social sciences Category:Anthropology Category:Archaeological sites [[Image:Outline of cave paintings, Altamira.png|thumb ...10 KB (1,634 words) - 08:36, 23 July 2023
- Category:Public Earth is the third planet in the solar system in terms of distance from the Sun, and the fifth in order of size. It is the largest ...38 KB (5,592 words) - 17:34, 12 February 2024
- Pluto, also designated (134340) Pluto or 134340 Pluto, is the second-largest known dwarf planet in the solar system and the tenth largest observed ...42 KB (6,097 words) - 17:02, 26 September 2023
- RADAR is a detection system that uses radio waves to determine and map the location, direction, and/or speed of both moving and fixed objects ...32 KB (4,862 words) - 22:43, 7 December 2022
- JPMorgan Chase & Co. ( JPM ) is one of the oldest financial services firms in the world. It is a leader in the financial industry with assets ...34 KB (4,890 words) - 08:31, 13 March 2024
- The America’s Cup is the most famous and most prestigious regatta and Match Race in the sport of sailing, and the oldest active trophy in international ...31 KB (4,811 words) - 02:52, 24 July 2023
- Superconductivity, discovered in 1911 by Heike Kamerlingh Onnes, is a phenomenon occurring in certain materials at extremely low temperatures ...21 KB (3,041 words) - 23:46, 26 February 2023
- Rickets, or rachitis, is a childhood deficiency disease characterized by defective bone growth resulting from lack of vitamin D or calcium. Insufficient ...11 KB (1,566 words) - 18:53, 11 August 2022
- Rubber is an elastic, hydrocarbon polymer that occurs as a milky, colloidal suspension (known as latex) in the sap of several varieties of plants ...28 KB (4,420 words) - 20:57, 21 December 2022
- A kayak is a small, lightweight, human-powered boat. Long and narrow in shape, it typically has a deck that covers the hull. A paddler sits in ...36 KB (5,715 words) - 17:16, 5 October 2022
- Alcyonaria Zoantharia See text for orders. Corals are those marine invertebrates of the phylum Cnidaria and the class Anthozoa that have external ...26 KB (4,043 words) - 19:01, 14 January 2023
- Thomas Alva Edison (February 11,1847 – October 18,1931) was an American inventor and businessman whose most important inventions revolutionized ...26 KB (4,124 words) - 21:08, 30 April 2023
- Oceania is a geographical (and geopolitical) region consisting of numerous countries and territories—mostly islands—in the Pacific Ocean ...24 KB (3,239 words) - 23:47, 17 November 2022
- Fractional distillation is a special type of distillation designed to separate a mixture of two or more liquids that have different boiling points ...12 KB (1,803 words) - 06:40, 1 April 2024
- Samarium (chemical symbol Sm, atomic number 62) is a bright silvery metal that is a member of the lanthanide series of chemical elements. It ...11 KB (1,437 words) - 02:07, 23 December 2022
- Category:Public [[Image:Retinol.png|thumb|250px|right|Retinol (Vitamin A)]] Vitamins are organic (carbon-containing) nutrients obtained through ...16 KB (2,456 words) - 20:40, 3 May 2023
- Anthozoa is a class of marine invertebrates within the phylum Cnidaria that are unique among cnidarians in that they do not do not have a medusa ...11 KB (1,481 words) - 01:56, 9 January 2023
- Cubic zirconia (or CZ) is the cubic crystalline form of zirconium dioxide (ZrO2). The synthesized material is hard, optically flawless, and usually ...11 KB (1,568 words) - 06:43, 11 January 2024
- The general term "ice age" or, more precisely, "glacial age" denotes a geological period of long-term reduction in the temperature ...38 KB (5,850 words) - 17:11, 10 February 2024
- Category:Public [[Image:Water cycle.png|right|thumb|400px|The movement of water around, over, and through the Earth is called the water cycle.]] ...15 KB (2,199 words) - 23:16, 3 May 2023
- Environmental engineering is the application of science and engineering principles to protect and enhance the quality of the environment—air ...12 KB (1,649 words) - 19:00, 13 February 2024
- Diamond is the hardest known natural material and the third-hardest known material after aggregated diamond nanorods and ultrahard fullerite ...81 KB (12,332 words) - 10:25, 29 January 2024
- Kilns are thermally insulated chambers, or ovens, in which a controlled temperature regime is produced. They are used to harden, burn, or dry ...23 KB (3,896 words) - 23:03, 3 March 2023
- Anne Sexton (November 9, 1928 – October 4, 1974), born Anne Gray Harvey, was a modern American poet, children's author, and a playwright ...11 KB (1,705 words) - 06:56, 28 July 2023
- Category:Politics and social sciences Category:Anthropologists Breuil, Henri {{Infobox scientist | name = Henri Breuil ...13 KB (1,739 words) - 17:06, 15 December 2023
- Beryllium (chemical symbol Be, atomic number 4) ranks among the lightest of all known metals. Steel-gray in color, it is strong but brittle. ...16 KB (2,296 words) - 17:26, 29 September 2023
- A catamaran (from Tamil kattumaram) [http://www.etymonline.com/index.php?term=catamaran Catamaran] Online Etymology Dictionary. Retrieved June ...20 KB (3,218 words) - 17:50, 30 November 2023
- The Solar system (or solar system) Capitalization of the name varies. The IAU, the authoritative body regarding astronomical nomenclature, specifies ...60 KB (9,448 words) - 15:09, 27 April 2023
- Category:Politics and social sciences Category:Anthropology [[Image:crematorium.arp.jpg|thumb|right|250px|The crematorium at Haycombe Cemetery ...24 KB (3,818 words) - 00:19, 15 January 2023
- Water is a common chemical substance that is essential for all known forms of life. Laurence D. Barron, Lutz Hecht, and Gary Wilson, [https://pubs ...56 KB (8,647 words) - 23:15, 3 May 2023
- Methylene blue (or MB) is a basic aniline dye with the molecular formula C16H18N3SCl. At room temperature, it appears as a solid, odorless, dark ...13 KB (1,911 words) - 16:28, 9 November 2022
- Spearfishing is a form of fishing that has been popular throughout the world for centuries. Early civilizations are familiar with the custom ...23 KB (3,586 words) - 15:19, 27 April 2023
- |- | Electron affinity || -53 kJ/mol 702 | 1470 | 2850 135 183 156 color1=#ffc0c0 | color2=black no data 50.6 7440-26-8 isotopesof=technetium ...43 KB (6,283 words) - 22:03, 13 January 2024
- Baobab is the common name for any of the deciduous trees comprising the flowering plant genus Adansonia, a taxa of eight extant species native ...12 KB (1,766 words) - 05:47, 15 June 2023
- Pecan is the common name for a large, North American deciduous hickory tree, Carya illinoinensis, characterized by alternate, pinnately compound ...12 KB (1,631 words) - 07:10, 23 November 2022
- ( 7261 ) is a Japanese automotive manufacturer based in Hiroshima, Japan. Mazda began in 1920 as Toyo Cork Kogyo Co., Ltd.(東洋コルク工業株式会社 ...29 KB (4,390 words) - 09:28, 10 March 2023
- High-intensity discharge (HID) lamps include several types of electrical lamps: mercury-vapor, metal halide (also HQI), high-pressure sodium ...36 KB (5,574 words) - 23:52, 12 February 2022
- A complex in chemistry usually is used to describe molecules or ensembles formed by the combination of ligands and metal ions. Originally, a ...21 KB (3,125 words) - 00:21, 8 January 2024
- In general terms, geothermal energy is thermal energy (the energy that determines the temperature of matter) generated and stored in the Earth ...43 KB (6,456 words) - 20:26, 13 December 2023
- Surface science is the study of physical and chemical phenomena that occur at the interface of two phases, including solid-liquid, solid-gas ...13 KB (1,826 words) - 23:53, 26 February 2023
- A bicycle (or bike) is a pedal-driven, human-powered vehicle with two wheels, one behind the other, attached to a frame. The basic shape and ...29 KB (4,462 words) - 03:45, 1 October 2023
- Many - see section below. Birds (class Aves) are bipedal, warm-blooded, oviparous (egg-laying) vertebrates characterized primarily by feathers ...31 KB (4,741 words) - 02:41, 8 March 2023
- Structural engineering is a field of engineering dealing with the design of structures that support or resist loads. Structural engineering is ...56 KB (8,392 words) - 21:05, 26 February 2023
- Samizdat ( самиздат , Bibuła , самиздат ) was the clandestine copying and distribution of government-suppressed literature or ...12 KB (1,682 words) - 02:12, 23 December 2022
- Barium (chemical symbol Ba, atomic number 56) is a soft, silvery chemical element classified as an alkaline earth metal. Given its reactivity ...13 KB (1,855 words) - 08:07, 20 September 2023
- Ethylene oxide (chemical formula C2H4O) is an important industrial chemical. It is also known as epoxyethane (IUPAC name), oxirane, and dimethylene ...12 KB (1,739 words) - 04:37, 22 March 2024
- In electrical engineering and industry, thermocouples are a widely used type of temperature sensor and can also be used as a means to convert ...22 KB (3,206 words) - 18:29, 30 April 2023
- Jaundice, also known as icterus, is a condition in which there is a yellowish discoloration of a person's skin, the whites of the eyes ...21 KB (3,036 words) - 10:01, 1 April 2024
- Hydrogen cyanide is a chemical compound with the formula HCN. It is a colorless, very poisonous, and highly volatile liquid that boils slightly ...12 KB (1,685 words) - 13:19, 4 February 2023
- Vitamin C (or ascorbic acid) is a water-soluble vitamin required for a number of metabolic processes in living organisms. As a vitamin, ascorbic ...31 KB (4,437 words) - 20:15, 17 April 2023
- pH is a measure of the acidity and the basicity/alkalinity of a solution in terms of activity of hydrogen (H+) (strictly speaking, there is no ...15 KB (2,240 words) - 15:20, 29 August 2023
- Epinephrine or adrenaline (sometimes spelled "epinephrin" or "adrenalin" respectively) is a hormone that is secreted principally ...13 KB (1,794 words) - 16:18, 15 February 2021
- Fertilizers (also spelled fertilisers) are compounds given to plants to promote growth; they are usually applied either via the soil, for uptake ...33 KB (4,735 words) - 17:28, 26 March 2024
- The geological history of Earth began 4.567 billion years ago, when the planets of the Solar System were formed out of the solar nebula, a ...37 KB (5,215 words) - 06:53, 18 April 2024
- Gliders or Sailplanes are heavier-than-air aircraft primarily intended for unpowered flight. They have been used not only for sport but also ...22 KB (3,495 words) - 08:00, 24 January 2023
- Uranium (chemical symbol U, atomic number 92) is a silvery metallic chemical element in the actinide series of the periodic table. The heaviest ...48 KB (6,867 words) - 15:33, 16 January 2024
- An air bag, also known as an Air Cushion Restraint System (ACRS) or Supplemental Restraint System (SRS), is an automobile safety device that ...35 KB (5,475 words) - 07:00, 16 June 2023
- Rhodium (chemical symbol Rh, atomic number 45) is a rare, silvery-white, inert metal. It is a member of the platinum group of elements and is ...13 KB (1,685 words) - 20:04, 8 December 2022
- Royal Dutch Shell plc, commonly known simply as Shell, is a multinational oil company of Dutch and British origins. It is the second largest ...44 KB (6,285 words) - 21:48, 16 April 2023
- Mount Hood (known as Wy'east to the Multnomah tribe), is a stratovolcano in the Cascade Volcanoes Arc in northern Oregon state, in the Pacific ...18 KB (2,745 words) - 01:45, 11 March 2023
- A neurotransmitter is a chemical that relays information across the gap (synapse) between one neuron (nerve cell) and an adjacent neuron or a ...16 KB (2,070 words) - 16:26, 11 November 2022
- Fiberglass or glass fiber is material made from extremely fine fibers of glass. The resulting composite material, properly known as fiber-reinforced ...14 KB (2,135 words) - 17:33, 26 March 2024
- Germanium (chemical symbol Ge, atomic number 32) is a lustrous, hard, grayish-white chemical element. It is classified as a metalloid—that ...13 KB (1,672 words) - 09:43, 5 December 2022
- A boat is a watercraft designed to float on and provide transport over water. It is usually operated on inland bodies of water (such as lakes ...13 KB (1,916 words) - 05:44, 16 November 2023
- ConocoPhillips Company ( COP ) is an international energy corporation with its headquarters located in Houston, Texas. It is the fifth largest ...24 KB (3,330 words) - 18:20, 6 June 2023
- A carcinogen is any substance or agent that can cause cancer. A carcinogen can be a chemical, radiation, radionuclide (an atom with an unstable ...14 KB (1,935 words) - 19:12, 26 November 2023
- Lead (chemical symbol Pb, atomic number 82) is a soft, heavy metal. Bluish white when freshly cut, it tarnishes to dull gray when exposed to ...18 KB (2,664 words) - 18:43, 25 October 2022
- Chloral hydrate is a colorless, solid chemical compound with the formula C2H3Cl3O2. It is soluble in both water and alcohol, readily forming ...12 KB (1,697 words) - 17:07, 10 December 2023
- Cusco (also spelled Cuzco, and in the Quechua language as Qusqu 'qos.qo ) is a city in southeastern Peru near the Sacred Valley in the Andes ...22 KB (3,238 words) - 06:49, 12 January 2024
- The word "acid" comes from the Latin acidus meaning "sour." In chemistry, however, the term acid has a more specific meaning. ...16 KB (2,510 words) - 07:38, 14 June 2023
- Saccharin is a synthetic organic compound that tastes hundreds of times sweeter than cane sugar (sucrose) and is used as a calorie-free sweetener ...13 KB (1,943 words) - 00:18, 22 August 2022
- The fish hook is a device for catching fish either by impaling them in the mouth or, more rarely, by snagging the body of the fish. Fish hooks ...14 KB (2,184 words) - 17:26, 28 March 2024
- A capacitor (or condenser "Condenser" is now considered an antiquated term for capacitor. ) is an electrical device that can store energy ...30 KB (4,519 words) - 19:31, 25 November 2023
- Land pollution is the degradation of earth's land surfaces often caused by human activities and its misuse. Haphazard disposal of urban ...12 KB (1,940 words) - 21:14, 22 October 2022
- Lothal (Gujarātī: લોથલ, ˈloːtʰəl , Eng: Mound or Tell of the Dead) was one of the most prominent cities of the ancient Indus valley ...37 KB (5,691 words) - 16:48, 25 October 2023
- Brown dwarfs are celestial objects ranging in mass between that of large gas giant planets and the lowest mass stars. Unlike stars on the main ...26 KB (3,884 words) - 04:37, 22 November 2023
- The Amazon River of South America is the world's largest river and the lifeblood of the world's largest ecosystem, spanning two-fifths ...24 KB (3,833 words) - 15:24, 19 August 2023
- Populus is a genus of deciduous trees in the flowering plants family Salicaceae, characterized by flowers in the form of long, drooping catkins ...14 KB (1,964 words) - 00:24, 12 April 2023
- Pompeii is a ruined city of Roman Empire near modern Naples in the Italian region of Campania, in the territory of the commune of Pompeii. It ...14 KB (2,204 words) - 08:49, 24 November 2022
- Mount St. Helens is an active volcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is located 128 ...26 KB (4,064 words) - 01:45, 11 March 2023
- Jean Baptiste Joseph Fourier (March 21, 1768 – May 16, 1830) was a French mathematician, physicist and government administrator during the ...13 KB (2,004 words) - 00:38, 11 August 2022
- The double bass, also known as the standup bass, is the largest and lowest pitched bowed string instrument used in the modern symphony orchestra ...40 KB (6,473 words) - 17:29, 30 January 2024
- A magnetosphere is a dynamically varying tear-drop shaped region of plasma comprising magnetic fields and charged particles surrounding a magnetized ...23 KB (3,695 words) - 05:21, 5 November 2022
- Apatite is the name given to a group of phosphate minerals, usually referring to hydroxylapatite (or hydroxyapatite), fluoroapatite (or fluorapatite ...15 KB (2,114 words) - 05:59, 11 August 2023
- Category:Politics and social sciences Category:Communication [[Image:Medieval writing desk.jpg|thumb|250px|Illustration of a scribe writing]] ...22 KB (3,308 words) - 14:05, 20 May 2023
- Plutonium (chemical symbol Pu, atomic number 94) is a radioactive, metallic chemical element that is part of the actinide series. It is the element ...37 KB (5,382 words) - 08:10, 24 November 2022
- Strontium (chemical symbol Sr, atomic number 38) is a soft, silvery white metallic element that occurs naturally in the minerals celestite and ...14 KB (1,860 words) - 21:04, 26 February 2023
- Nuclear power is a type of nuclear technology involving the controlled use of nuclear reactions to release energy for work, including propulsion ...49 KB (7,262 words) - 10:10, 11 March 2023
- Nuclear fission is the splitting of the nucleus of an atom into parts (lighter nuclei), often producing photons (in the form of gamma rays), ...31 KB (4,827 words) - 10:09, 11 March 2023
- Auxins are a class of naturally occuring or synthetic organic (carbon-containing) plant growth substances (often called phytohormones or plant ...15 KB (2,169 words) - 05:59, 10 January 2023
- Ruthenium (chemical symbol Ru, atomic number 44) is a rare, hard, white metal. It is a member of the platinum group of elements and is found ...13 KB (1,814 words) - 18:24, 22 December 2022
- Diatom is the common name for a major group of unicellular or (less commonly) colonial algae comprising the protist taxon Bacillariophyceae ...26 KB (3,706 words) - 11:59, 29 January 2024
- Linus Carl Pauling (February 28, 1901 – August 19, 1994) was an American quantum chemist and biochemist. He was also acknowledged as a crystallographer ...44 KB (6,490 words) - 04:18, 29 October 2022
- Nutrition is the combination of elements consumed by a person that nourishes the body, enabling it to sustain in an efficient manner all of its ...56 KB (8,181 words) - 01:22, 17 November 2022
- Manganese (chemical symbol Mn, atomic number 25) is a gray-white metal that combines with other elements in various proportions. In nature, it ...14 KB (1,946 words) - 11:03, 9 March 2023
- Category:Public [[image:Common_clownfish.jpg|thumb|250px|right|Common Clownfish (Amphiprion ocellaris) in their magnificent sea anemone (Heteractis ...33 KB (5,007 words) - 07:43, 24 October 2022
- Werner Karl Heisenberg (December 5, 1901 – February 1, 1976) was a celebrated German physicist and Nobel laureate, one of the founders of quantum ...22 KB (3,234 words) - 17:14, 4 May 2023
- Category:Politics and social sciences Category:Education Category:Universities and Colleges {{Infobox_University-Jen |image= [[Image:Reynoldsclub ...51 KB (7,192 words) - 13:07, 3 May 2023
- Easter Island, known in the native language as "Rapa Nui" ("Big Rapa") or "Isla de Pascua" in Spanish, is an island ...24 KB (3,502 words) - 17:39, 12 February 2024
- A solar cell or photovoltaic cell is a device that converts solar energy into electricity by the photovoltaic effect. Sometimes, the term solar ...90 KB (13,568 words) - 15:08, 27 April 2023
- Cave of Altamira and Paleolithic Cave Art of Northern Spain is the name under which 18 caves located in different regions of northern Spain are ...25 KB (4,047 words) - 06:22, 18 November 2022
- Category:Geography Category:Politics and social sciences Category:Anthropology Category:Archaeology Category:Paranormal {{Infobox World Heritage Site ...15 KB (2,182 words) - 15:59, 11 November 2022
- Chromium (chemical symbol Cr, atomic number 24) is a hard, shiny, steel-gray metal that takes a high polish and does not tarnish. It is therefore ...15 KB (2,106 words) - 21:52, 10 December 2023
- The Crab Nebula (catalog designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. Located ...23 KB (3,450 words) - 06:15, 11 January 2024
- Azerbaijan [ɑ:zɚbai'ʤɑ:n] (Azerbaijani: Azərbaycan), officially the Republic of Azerbaijan (Azerbaijani: Azərbaycan Respublikası) ...40 KB (5,942 words) - 05:17, 26 August 2023
- The viola (in French, alto; in German Bratsche) is an alto string instrument played with a bow. Known as the "big fiddle," the viola ...22 KB (3,581 words) - 20:26, 3 May 2023
- Ban Chiang ( บ้านเชียง ), denotes an archeological site located in Nong Han district, Udon Thani Province, Thailand. Discovered ...15 KB (2,139 words) - 03:25, 17 September 2023
- Dentistry is the science and profession concerned with the study, diagnosis, prevention, and treatment of diseases, abnormalities, or other conditions ...16 KB (2,245 words) - 16:53, 26 September 2020
- William Motter Inge ( ˈɪndʒ "inj"; [http://dictionary.reference.com/browse/Inge Inge at Dictionary.com] Retrieved May 22, 2008. ...13 KB (2,098 words) - 11:04, 9 May 2023
- Testosterone is a steroid hormone that acts in vertebrates to regulate many sexually dimorphic traits and express many fitness related traits ...21 KB (3,056 words) - 15:00, 30 April 2023
- Softball is a sport that sprung from the mind of George Hancock. The game consists of an oversized ball, eleven to 12 inches (or rarely, 16 inches ...50 KB (8,173 words) - 15:07, 27 April 2023
- Guglielmo Marconi (April 25, 1874 – July 20, 1937) was an Italian inventor, best known for his pioneering work in the use of radio wave transmissions ...27 KB (3,973 words) - 00:54, 7 March 2023
- Refrigeration is the process of removing heat from an enclosed space, or from a substance, and rejecting it elsewhere for the primary purpose ...28 KB (4,251 words) - 19:11, 16 April 2023
- Category:Public [[Image:BI2223-piece3 001.jpg|thumb|right|200px|A small sample of the high-temperature superconductor BSCCO-2223 (bismuth strontium ...16 KB (2,304 words) - 23:57, 3 December 2023
- Toronto is the largest city in Canada and the fifth largest metropolitian area in North America. Located on the northwestern shore of Lake Ontario ...43 KB (6,252 words) - 23:37, 15 January 2024
- Category:Politics and social sciences Category:Archaeology Category:Art [[Image:Laas Geel cow herd.jpg|thumb|400px|right|Detail of the Laas Geel ...15 KB (2,271 words) - 16:21, 3 December 2023
- The Dead Sea Scrolls (Hebrew: מגילות ים המלח) comprise roughly 850 documents, including texts from the Hebrew Bible, discovered between ...33 KB (5,119 words) - 08:55, 28 January 2024
- A lake (from the Latin word lacus) is an inland body of water, not part of the ocean, that is larger and deeper than a pond and is localized ...31 KB (4,835 words) - 05:36, 4 March 2023
- Vanadium (chemical symbol V, atomic number 23) is a rare, silver-gray metal. It is found combined in several minerals and is one of the 26 elements ...15 KB (2,022 words) - 14:18, 3 May 2023
- A firearm is a tool that projects either single or multiple projectiles at high velocity through a controlled explosion. The firing is achieved ...44 KB (7,015 words) - 19:53, 26 March 2024
- Category:Public number=2 | symbol=He | name=helium | left=hydrogen | right=lithium | above=- | below=Ne | color1=#c0ffff | color2=green ...32 KB (4,897 words) - 15:19, 25 January 2023
- A submarine is a specialized watercraft that can operate underwater at very high pressures beyond the range of unaided human survivability. Submarines ...65 KB (10,100 words) - 13:44, 28 April 2023
- The Walled City of Lahore, also known as the "Old City," or "Anderoon Shehr (اندرون شهر)," constitutes the section ...16 KB (2,492 words) - 22:07, 3 May 2023
- This article is about the form of dwelling {{multiple image|perrow = 3|total_width=440 | image1 = Katsura Imperial Villa in Spring.jpg|width10 ...27 KB (3,923 words) - 00:12, 4 February 2024
- A fetus (or foetus, fœtus) is a developing mammal or other viviparous vertebrate, after the embryonic stage and before birth. In humans, the ...27 KB (3,955 words) - 17:28, 26 March 2024
- Sir Arthur Charles Clarke, CBE<!-- The award of Knight Bachelor carries the title of "Sir" and no post-nominal letters (see url ...45 KB (6,700 words) - 11:08, 16 August 2023
- Category:Politics and social sciences Category:Life sciences Category:Lifestyle Category:Food [[Image:Hanging Meat at a Street Fair 2.JPG|thumb ...43 KB (6,886 words) - 08:03, 20 September 2023
- Angela Dorothea Merkel (born Angela Dorothea Kasner, July 17, 1954, in Hamburg, West Germany), is a German politician and scientist who served ...49 KB (6,775 words) - 18:05, 27 July 2023
- Category:Economics Category:Politics and social sciences [[Image:Benz-velo.jpg|thumb|right|213px|Karl Benz's "Velo" (velo means ...16 KB (2,423 words) - 06:37, 31 July 2023
- The diesel engine is an internal combustion engine that uses compression ignition, in which fuel ignites as it is injected into air in the combustion ...60 KB (9,401 words) - 14:31, 29 January 2024
- Category:Public [[Image:Trilobite2.jpg|thumb|250px|A permineralized trilobite, Asaphus kowalewskii]] Fossils (from Latin fossus, literally "having ...18 KB (2,851 words) - 12:16, 22 May 2021
- Mona Lisa (also known as La Gioconda) is a sixteenth century portrait painted in oil on a poplar panel by Leonardo da Vinci during the Italian ...32 KB (4,849 words) - 15:32, 25 May 2023
- The Shroud of Turin is an ancient linen cloth which some believe is the cloth that covered Jesus of Nazareth when he was placed in his tomb. ...62 KB (9,799 words) - 14:29, 27 January 2023
- Michael Faraday was one of the pioneers of modern electromagnetic theory. His work laid the foundation for the identification of light as an ...17 KB (2,503 words) - 16:54, 9 November 2022
- An arrow is a pointed projectile that is shot with a bow. It predates recorded history and is common to most cultures. Bows and arrows have been ...17 KB (2,657 words) - 03:58, 15 August 2023
- The Eocene epoch (56-34 million years ago) is a major division of the geologic timescale and the second epoch of the Palaeogene period in the ...16 KB (2,367 words) - 21:20, 9 February 2022
- The climate of India comprises a wide range of weather conditions across a large geographic scale and varied topography, making generalizations ...54 KB (7,582 words) - 22:06, 7 January 2024
- In chemistry, radicals (or free radicals) are atomic or molecular species with unpaired electrons in an otherwise open shell configuration. These ...18 KB (2,651 words) - 22:44, 7 December 2022
- Ice is the name given to water in the solid state. In nature, it is found in various forms, such as frost, hail, and glaciers. It may be classified ...24 KB (3,832 words) - 17:09, 10 February 2024
- Category:Public [[Image:Photo 37.jpg|right|thumb|250px|Experimental work in progress in a chemistry laboratory.]] Chemistry (from Egyptian kēme ...20 KB (2,886 words) - 14:48, 5 December 2023
- Collagen is the main protein of connective tissue in animals and the most abundant protein in mammals, making up about 25 percent of the total ...18 KB (2,575 words) - 22:32, 7 January 2024
- "Seven" redirects here. {| class="infobox" style="width: 20em;" |- | colspan="2" align="center" | 7 ...35 KB (5,128 words) - 06:47, 13 June 2023
