Search results for "Hydrogen-1" - New World Encyclopedia
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- 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
- Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colorless in a dilute solution, slightly more viscous than water. It is a weak ...32 KB (4,734 words) - 13:20, 4 February 2023
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- Category:Public [[Image:Elektrolyse1.jpg|thumb|200px|right|An apparatus called a Hoffman voltameter is being used for the electrolysis of water ...7 KB (1,039 words) - 04:29, 27 November 2020
- 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
- Deoxyribose, also known as D-Deoxyribose and 2-deoxyribose, is a pentose sugar (monosaccharide containing five carbon atoms) that is a key component ...7 KB (1,045 words) - 05:24, 25 August 2020
- A nonmetal is a chemical element with several properties that are opposite those of a metal. Based on their properties, the elements of the periodic ...6 KB (785 words) - 02:40, 16 November 2022
- The ability of a chemical to behave as both an acid and a base is called amphoterism, and this type of substance is known as an amphoteric substance. ...5 KB (789 words) - 17:25, 26 July 2023
- A hydrocarbon is any chemical compound that is constituted of just the elements carbon (C) and hydrogen (H). Each hydrocarbon molecule consists ...8 KB (1,193 words) - 13:34, 17 May 2021
- 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
- Henry Cavendish (October 10, 1731 - February 24, 1810) was a British scientist best known for being the first to measure the average density ...8 KB (1,276 words) - 07:10, 22 January 2024
- 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
- 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
- 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
- Smoke is the airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity ...7 KB (1,034 words) - 21:19, 30 January 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
- An aldehyde is an organic compound containing a terminal carbonyl group. This functional group, called an aldehyde group, consists of a carbon ...11 KB (1,651 words) - 05:09, 17 June 2023
- Ribose, primarily seen as D-ribose, is a water-soluable, pentose sugar (monosaccharide with five carbon atoms) that is an important component ...7 KB (1,027 words) - 09:19, 10 August 2022
- 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
- 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
- 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
- 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
- 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
- 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
- In physics, the proton (Greek πρῶτον proton = first) is a subatomic particle with an electric charge of one positive fundamental unit. ...10 KB (1,600 words) - 08:20, 2 December 2022
- 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
- A covalent bond is a type of chemical bond characterized by the sharing of a pair of electrons between two atoms. In general, a chemical bond ...15 KB (2,401 words) - 06:13, 11 January 2024
- 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
- Crown ethers are heterocyclic chemical compounds that consist of a ring containing several ether groups. The most common crown ethers are oligomers ...6 KB (841 words) - 23:38, 5 May 2022
- A nebula (pl. nebulae, nebulæ, or nebulas; derived from the Latin word for "mist" or "cloud" Online Etymology Dictionary ...9 KB (1,435 words) - 16:07, 11 November 2022
- Edward Williams Morley (January 29, 1838 – February 24, 1923) was an American physicist and chemist. He is best known for an experiment in ...11 KB (1,652 words) - 16:28, 9 August 2023
- 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
- A bleach is a chemical that can remove or lighten the color of an object, often by a process known as oxidation. Common chemical bleaches include ...7 KB (964 words) - 18:12, 31 October 2023
- <!-- 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
- Category:Public number=10 | symbol=Ne | name=neon | left=fluorine | right=sodium | above=He | below=Ar | color1=#c0ffff | color2=green ...6 KB (841 words) - 16:18, 11 November 2022
- Redox (shorthand for reduction/oxidation reaction) describes all chemical reactions in which atoms have their oxidation number (oxidation state ...12 KB (1,809 words) - 02:49, 8 December 2022
- 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
- According to the Hertzsprung-Russell diagram, The Hertzsprung-Russell diagram shows the relationship between absolute magnitude, luminosity, classification ...10 KB (1,492 words) - 19:09, 16 April 2023
- Tritium (chemical symbol Tritium or Hydrogen|3 ) is a radioactive isotope of hydrogen. The nucleus of tritium (sometimes called a triton) contains ...18 KB (2,638 words) - 16:50, 5 November 2022
- 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
- In organic chemistry, an alkene, olefin, or olefine is an unsaturated chemical compound containing at least one carbon-to-carbon double bond ...13 KB (1,908 words) - 22:30, 4 January 2023
- 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
- 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
- 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
- symbol may be its large mass difference with hydrogen-1 (¹H), also known as protium. Deuterium has a mass of 2.014 atomic mass units (u), compared ...31 KB (4,687 words) - 10:07, 29 January 2024
- Category:Public [[Image:plasma fountain.gif|thumb|300px|right|The Earth's "plasma fountain," showing oxygen, helium, and hydrogen ...17 KB (2,619 words) - 11:09, 6 March 2024
- A subatomic particle is a particle smaller than an atom. It may be either an elementary (or fundamental) particle, or a composite particle, also ...20 KB (3,162 words) - 21:09, 26 February 2023
- In cosmology, the Steady State theory (also known as the Infinite Universe theory or continuous creation) is a model developed in 1948 by Fred ...10 KB (1,466 words) - 19:55, 9 February 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
- An acid-base reaction is a chemical reaction that occurs between an acid and a base. Several concepts exist which provide alternative definitions ...18 KB (2,642 words) - 07:40, 14 June 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
- Rocket propellant is the material used by a rocket engine to generate thrust. The most common propellants consist of a fuel and an oxidizer that ...24 KB (3,649 words) - 02:28, 16 December 2022
- Hydrogen peroxide (H2O2) is a very pale blue liquid which appears colorless in a dilute solution, slightly more viscous than water. It is a weak ...32 KB (4,734 words) - 13:20, 4 February 2023
- Einsteinium (chemical symbol Es, atomic number 99) is a synthetic element in the periodic table. A metallic, highly radioactive, transuranic element ...7 KB (940 words) - 00:06, 13 February 2024
- 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
- 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
- Fatty acids are a class of compounds containing a long hydrocarbon chain and a terminal carboxylate group (-COOH). They have the general structure ...16 KB (2,372 words) - 01:39, 26 March 2024
- follows: the deviation starts positive at hydrogen-1, becomes negative until a minimum is reached at iron-56, iron-58 and nickel-62, then increases to ...13 KB (2,025 words) - 06:26, 21 August 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
- An electrolyte (or lyte, in abbreviated jargon) is a material containing free ions that can conduct an electrical current. Most electrolytes ...13 KB (1,858 words) - 08:06, 29 December 2021
- In physics and chemistry, an atomic orbital is a region in which an electron may be found within a single atom. J. Daintith, Oxford Dictionary ...33 KB (5,193 words) - 01:09, 18 November 2022
- 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
- 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
- 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
- Ethyl acetate is an organic compound that is an ester derived from the combination of ethanol and acetic acid. Its chemical formula may be written ...8 KB (1,113 words) - 04:36, 22 March 2024
- 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, 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
- 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
- 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
- Nitric acid (chemical formula HNO3) is one of the most important inorganic acids. Eighth-century alchemists called it aqua fortis (strong water ...19 KB (2,942 words) - 02:25, 16 November 2022
- 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
- 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
- The nucleus of an atom is the very dense region at the center of the atom, consisting of particles known as protons and neutrons (collectively ...13 KB (1,903 words) - 06:57, 21 August 2023
- Sir Joseph John “J.J.” Thomson, OM, FRS (December 18, 1856 – August 30, 1940) was a British physicist and Nobel laureate, credited with ...15 KB (2,271 words) - 01:09, 8 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
- |- | 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
- Category:Public [[Image:Yukawa.jpg|thumb|Hideki Yukawa]] Yukawa, Hideki Hideki Yukawa FRSE (湯川 秀樹, January 23, 1907 – September 8, 1981 ...3 KB (480 words) - 13:02, 22 January 2024
- 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
- 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
- |- | 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
- 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
- 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
- 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
- In chemistry, a base is thought of as a substance which can accept protons or any chemical compound that yields hydroxide ions (OH-) in solution ...21 KB (3,307 words) - 11:03, 20 September 2023
- A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compression of a gas naturally increases ...13 KB (1,967 words) - 07:49, 23 January 2023
- 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
- Category:Public Organic chemistry is the scientific study of the structures, properties, and methods of syntheses of chemical compounds that are ...8 KB (1,161 words) - 01:13, 18 November 2022
- 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
- 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
- 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
- Supramolecular chemistry refers to an area of chemistry that specializes in the study of noncovalent interactions within and between molecules. ...20 KB (2,678 words) - 17:36, 23 October 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
- Category:Public number=78 | symbol=Pt | name=platinum | left=iridium | right=gold | above=Pd | below=Ds | color1=#ffc0c0 | color2=black ...14 KB (2,002 words) - 08:01, 24 November 2022
- 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
- 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
- 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
- Millipede ("thousand legs") is the common name for any member of the arthropod class Diplopoda (previously also known as Chilognatha ...9 KB (1,312 words) - 18:00, 9 November 2022
- A supercritical fluid is any substance at a temperature and pressure above its thermodynamic critical point. It has the unique ability to diffuse ...14 KB (2,010 words) - 13:54, 28 April 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
- A balloon is a flexible bag normally filled with a gas, such as helium, hydrogen, nitrous oxide or air. Some balloons are purely decorative, ...27 KB (4,279 words) - 05:57, 26 August 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
- 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
- Argon (chemical symbol Ar, atomic number 18) is a member of the noble gas family of elements. It is present in the Earth's atmosphere at ...11 KB (1,517 words) - 06:25, 12 August 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
- 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: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
- |- | 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
- In classical physics, free space, sometimes called the vacuum of free space, refers to a region of space where there is a theoretically "perfect ...15 KB (2,209 words) - 19:32, 8 October 2022
- 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
- Diethyl ether, also known as ether and ethoxyethane, is a clear, colorless, and highly flammable liquid with a low boiling point and a characteristic ...13 KB (1,801 words) - 14:33, 29 January 2024
- 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
- 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
- Chloroethane or monochloroethane, commonly known by its old name ethyl chloride, is a chemical compound once widely used in producing tetra-ethyl ...7 KB (906 words) - 17:08, 10 December 2023
- 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
- <!-- 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
- 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
- Category:Public [[Image:RIAN archive 25981 Academician Sakharov.jpg|thumb|right]] Dr. Andrei Dmitrievich Sakharov (Андре́й Дми́триевич ...11 KB (1,679 words) - 20:10, 26 July 2023
- 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
- 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
- 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
- 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
- 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
- Buffer solutions are solutions that resist changes in pH (by resisting changes in hydronium ion and hydroxide ion concentrations) upon addition ...12 KB (1,728 words) - 18:37, 22 November 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
- In scientific inquiry, an experiment (from the Latin term ex- periri, meaning "of (or from) trying") is a means of investigating the ...15 KB (2,257 words) - 23:56, 24 March 2024
- 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
- 1 (one) is a number, numeral, and the glyph that represents the number. It represents a single entity and is commonly regarded as the fundamental ...16 KB (2,188 words) - 06:29, 13 June 2023
- North Korea claims to possess nuclear weapons, and the CIA asserts that it has a substantial arsenal of chemical weapons. North Korea, a member ...25 KB (3,635 words) - 06:33, 16 November 2022
- Category:Public [[Image:Gay head cliffs MV.JPG|right|thumb|250px|These cliffs in Martha's Vineyard, Massachusetts, are made almost entirely ...7 KB (1,004 words) - 11:01, 19 December 2023
- Johannes Diderik van der Waals (November 23, 1837 – March 8, 1923) was an outstanding Dutch physicist who was the first to obtain an equation ...10 KB (1,620 words) - 23:19, 22 June 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 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
- 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
- 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
- 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
- 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
- In common terminology, transition metals (or transition elements) are chemical elements that lie in groups 3 through 12 of the periodic table ...17 KB (2,462 words) - 04:39, 5 November 2022
- 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
- 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
- In physics and nuclear chemistry, nuclear fusion is the process by which multiple atomic particles join together to form a heavier nucleus. It ...39 KB (6,029 words) - 23:53, 16 November 2022
- 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
- Edward Teller (original Hungarian name Teller Ede) (January 15, 1908 – September 9, 2003) was a Hungarian-born American theoretical physicist ...41 KB (6,221 words) - 23:53, 12 February 2024
- Prunus is an economically important genus of deciduous and evergreen trees and shrubs, characterized by a fruit in the form of a drupe, usually ...16 KB (2,329 words) - 01:24, 12 April 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
- 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
- An acid dye is a type of dye that is applied from an acidic solution. In the home or art studio, the acid used in the dyebath is often vinegar ...5 KB (844 words) - 07:40, 14 June 2023
- 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 (5,055 words) - 06:44, 28 February 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
- 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
- In nuclear physics, a nuclear reaction is a process in which two atomic nuclei or nuclear particles collide to produce products different from ...22 KB (3,405 words) - 00:39, 17 November 2022
- 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
- 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
- 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
- Fluorine (chemical symbol F, atomic number 9) is a nonmetal that belongs to a group of chemical elements known as halogens. Chemically, it is ...13 KB (1,855 words) - 17:47, 28 March 2024
- Fermium (chemical symbol Fm, atomic number 100) is a synthetic element in the periodic table. A highly radioactive metallic transuranic element ...7 KB (998 words) - 17:26, 26 March 2024
- Sulfur dioxide (also sulphur dioxide) is the chemical compound with the formula SO2. This important gas is the main product from the combustion ...13 KB (1,988 words) - 21:44, 26 February 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
- Outer space (often called space) consists of the relatively empty regions of the universe outside the atmospheres of celestial bodies. Outer ...19 KB (2,762 words) - 05:59, 18 November 2022
- Fluorescein (chemical formula C20H12O5) is a highly fluorescent substance, absorbing light mainly in the blue range and emitting light mainly ...6 KB (892 words) - 17:45, 28 March 2024
- A percussion instrument can be any object which produces a sound by being struck, shaken, rubbed, and scraped with an implement, or by any other ...13 KB (1,907 words) - 00:31, 24 November 2022
- 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
- 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
- |- | Critical temperature || 1673 K (gray) 24.44 ? 34.76 24.64 553 | 596 | 646 | 706 | 781 | 874 | comment= color1=#cccc99 | color2=black ...21 KB (2,920 words) - 04:00, 15 August 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
- 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
- Nuclear physics is a field of physics that involves investigation of the building blocks and interactions of atomic nuclei. It includes studies ...18 KB (2,740 words) - 00:29, 17 November 2022
- 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
- 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
- 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
- Category:Public number=6 | symbol=C | name=carbon | left=boron | right=nitrogen | above=- | below=Si | color1=#a0ffa0 | color2=black ...21 KB (2,997 words) - 22:12, 25 November 2023
- Pyrite (or iron pyrite) is the most common of the sulfide minerals. Chemically, it is known as iron disulfide (FeS2). Its metallic luster and ...8 KB (1,190 words) - 21:08, 14 April 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
- Almond is a small deciduous tree, Prunus amygdalus (syn. Prunus dulcis, or Amygdalus communis) belonging to the subfamily Prunoideae of the family ...20 KB (2,967 words) - 20:41, 26 March 2024
- An adhesive is a material that can adhere (stick) to other materials and help attach them together. The state of attachment is known as adhesion ...13 KB (1,970 words) - 05:51, 15 June 2023
- 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
- 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
- A spacecraft is a craft or machine designed for spaceflight. Although it is, by definition, designed to travel into space, it may or may not ...18 KB (2,454 words) - 19:05, 7 February 2023
- 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
- 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
- The carbon cycle is the biogeochemical cycle by which carbon is exchanged between the biosphere, geosphere, hydrosphere, and atmosphere of the ...17 KB (2,593 words) - 23:46, 20 April 2023
- A quasar (contraction of QUASi-stellAR radio source) is an extremely bright and distant active nucleus of a young galaxy. Quasars were first ...16 KB (2,372 words) - 15:39, 7 December 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
- Niels (Henrik David) Bohr (October 7, 1885 – November 18, 1962) was a Danish physicist who made fundamental contributions to understanding ...21 KB (3,171 words) - 09:45, 11 March 2023
- 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
- Selenium (chemical symbol Se, atomic number 34) is a chemical element that is classified as a nonmetal. It is chemically related to sulfur and ...23 KB (3,335 words) - 17:47, 25 January 2023
- A bomb is any of a range of devices that can be exploded to produce a sudden, violent release of energy. It typically relies on explosive material ...13 KB (2,042 words) - 07:18, 17 November 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
- 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
- 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
- Dysprosium (chemical symbol Dy, atomic number 66) is a rare earth element that has a metallic, bright silver luster. The term "rare earth ...10 KB (1,193 words) - 17:27, 12 February 2024
- 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
- 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
- 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
- Erwin Rudolf Josef Alexander Schrödinger (August 12, 1887 – January 4, 1961) was an Austrian-Irish physicist who achieved fame for his contributions ...17 KB (2,571 words) - 21:27, 20 March 2024
- Anodizing is a technique used to coat the surface of a metal with an oxide layer. It may be used to increase corrosion resistance, increase wear ...10 KB (1,610 words) - 05:12, 31 July 2023
- The electron is a fundamental subatomic particle, which carries a negative electric charge. Electrons generate an electric field. In organized ...10 KB (1,515 words) - 15:57, 13 February 2024
- The chemical compound ammonium nitrate, the nitrate of ammonia with the chemical formula NH4NO3, is a white powder at room temperature and standard ...18 KB (2,699 words) - 07:39, 25 July 2023
- Tin (chemical symbol Sn, atomic number 50) is a silvery, malleable metal that is not easily oxidized in air and resists corrosion. It is obtained ...16 KB (2,335 words) - 23:38, 30 April 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
- 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
- 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
- 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
- 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
- Acetone (also known as propanone, dimethyl ketone, 2-propanone, propan-2-one and β-ketopropane) is the simplest representative of the group ...10 KB (1,364 words) - 07:34, 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
- In the Solar System, Saturn is the sixth planet from the Sun. It is a gas giant (also known as a Jovian planet, after the planet Jupiter), the ...26 KB (3,935 words) - 17:00, 23 December 2022
- Butane, also called n-butane (normal butane), is an unbranched alkane with four carbon atoms in each molecule. Its molecular formula may be written ...10 KB (1,437 words) - 18:43, 23 November 2023
- 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
- Boiling is the process of rapidly converting a liquid to its gaseous (vapor) state, typically by heating the liquid to a temperature called its ...13 KB (2,088 words) - 05:24, 17 November 2023
- 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
- In natural philosophy, atomism is the theory that all the objects in the universe are composed of very small, invisible, indestructible building ...37 KB (5,618 words) - 06:58, 21 August 2023
- 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
- 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
- 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
- Scandium (chemical symbol Sc, atomic number 21) is a soft, silvery-white metal. Scandium ore occurs in rare minerals from Scandinavia and elsewhere ...12 KB (1,615 words) - 17:06, 25 January 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
- A turbine is a rotary engine that extracts energy from a fluid flow. The simplest turbines have one moving part, a rotor assembly, which is a ...17 KB (2,749 words) - 00:22, 3 May 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
- 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
- Neptune is the eighth and farthest planet from the Sun in our solar system. It is the fourth largest planet by diameter and the third largest ...30 KB (4,444 words) - 16:20, 11 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
- Vitamin B6 (vitamin B6) is an organic nutrient of the vitamin B complex that appears in three natural, related, water-soluble forms: the alcohol ...22 KB (3,234 words) - 20:41, 3 May 2023
- Sir Goldsworthy Gurney (1793 - 1875) was a surgeon, chemist, lecturer, consultant, architect, builder, and prototypical British gentleman scientist ...27 KB (4,255 words) - 22:32, 29 January 2023
- A dielectric, or electrical insulator, is a material that is highly resistant to the flow of an electric current. Dielectric materials can be ...14 KB (1,888 words) - 14:27, 29 January 2024
- 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
- 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
- The solubility of a chemical substance is a physical property referring to the ability of that substance, called the solute, to dissolve in a ...23 KB (3,483 words) - 01:08, 4 February 2023
- X-ray astronomy is an observational branch of astronomy that focuses on the study of celestial objects based on their X-ray emissions. These ...11 KB (1,662 words) - 14:15, 20 May 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
- In cosmology, the cosmic microwave background radiation CMB (also CMBR, CBR, MBR, and relic radiation) is a form of electromagnetic radiation ...47 KB (6,936 words) - 08:12, 10 January 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
- In astrophysics and cosmology, dark matter is a major component of the universe of unknown composition that does not emit or reflect electromagnetic ...31 KB (4,554 words) - 22:23, 25 January 2024
- 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
- General Motors Corporation, also known as GM, an American multinational corporation, is consistently the world's largest auto company by ...40 KB (5,886 words) - 06:44, 18 April 2024
- 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
- The Moon is Earth's only natural satellite. Natural satellites of other planets are also called moons, although they usually have their ...39 KB (6,162 words) - 13:13, 10 March 2023
- The Kelvin scale is a thermodynamic (absolute) temperature scale. The zero position on this scale is known as absolute zero, which is defined ...15 KB (2,316 words) - 17:20, 5 October 2022
- 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
- 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
- A galaxy is a massive, gravitationally bound system consisting of stars, an interstellar medium of gas, plasma, and dust, and dark matter.L.S ...57 KB (8,514 words) - 03:49, 18 April 2024
- A contact lens (also known simply as a "contact") is a corrective, cosmetic, or therapeutic lens usually placed on the cornea of the ...37 KB (5,508 words) - 02:44, 8 January 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
- Radium (chemical symbol Ra, atomic number 88) is an extremely radioactive element that is classified as an an alkaline earth metal. When freshly ...13 KB (1,820 words) - 22:47, 7 December 2022
- 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
- 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
- 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
- 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
- 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
- Transfer RNA (tRNA) is a class of short-chain, non-coding ribonucleic acid (RNA) molecules in which each variety attaches to and transfers a ...13 KB (1,936 words) - 01:34, 2 May 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
- NASA's Space Shuttle, officially called the Space Transportation System (STS), was the United States government's manned launch vehicle ...43 KB (6,281 words) - 15:42, 4 February 2023
- The thyroid (from the Greek word for "shield," after its shape) is a double-lobed endocrine gland found in all vertebrates, and which ...24 KB (3,497 words) - 17:25, 18 April 2023
- 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
- 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
- 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
- Nephron is the basic structural and functional unit of the vertebrate kidney, with numerous such filtering units carrying out nearly all the ...14 KB (2,036 words) - 16:20, 11 November 2022
- 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
- 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
- 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
- Rubidium (chemical symbol Rb, atomic number 37) is a soft, silvery-white metallic element of the alkali metal group. Rb-87, a naturally occurring ...14 KB (1,892 words) - 20:57, 21 December 2022
- 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
- A white dwarf, also called a degenerate dwarf, is a small star composed mostly of electron-degenerate matter. As white dwarfs have mass comparable ...72 KB (10,792 words) - 18:14, 4 May 2023
- In particle physics, an elementary particle or fundamental particle is a particle that does not have a substructure, as far as is known; that ...18 KB (2,400 words) - 16:06, 13 February 2024
- 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
- An airship or dirigible is a buoyant aircraft that can be steered and propelled through the air. It is classified as an aerostatic craft, to ...40 KB (6,108 words) - 07:11, 16 June 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
- 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
- Category:Public [[Image:Weatheringcartoon.jpg|thumb|right|400px|This illustration shows various components of space weathering]] Space weathering ...10 KB (1,503 words) - 17:14, 14 October 2022
- Tellurium (chemical symbol Te, atomic number 52) is a relatively rare chemical element that belongs to the group of metalloids—its chemical ...14 KB (1,880 words) - 05:35, 27 February 2023
- Colitis (or colonitis) is inflammation of the colon (or more generally the large intestine). Various types of colitis have been identified, such ...11 KB (1,475 words) - 22:31, 7 January 2024
- In thermodynamics and molecular chemistry, the enthalpy or heat content (denoted as H, h, or rarely as χ) is a quotient or description of thermodynamic ...18 KB (2,941 words) - 18:57, 13 February 2024
- Borates are chemical compounds containing borate anions, that is, anions composed of boron and oxygen. There are various borate ions, the simplest ...10 KB (1,587 words) - 19:37, 20 November 2023
- A nuclear reactor is a device in which nuclear chain reactions are initiated, controlled, and sustained at a steady rate, as opposed to a nuclear ...45 KB (6,704 words) - 00:40, 17 November 2022
- John von Neumann (Hungarian Margittai Neumann János Lajos) (December 28, 1903 – February 8, 1957) was a mathematician who made contributions ...30 KB (4,433 words) - 00:38, 10 February 2023
- 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
- Pyotr Leonidovich Kapitsa (Russian Пётр Леонидович Капица) (July 9, 1894 – April 8, 1984) was a Russian physicist who discovered ...9 KB (1,369 words) - 03:36, 7 December 2022
- 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
- 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
- Sir James Chadwick, CH (October 20, 1891 – July 24, 1974) was an English physicist and Nobel laureate who is best known for discovering the ...12 KB (1,728 words) - 21:08, 20 March 2024
- An optical fiber (or optical fibre) is a glass or plastic fiber designed to guide light along its length by confining as much light as possible ...31 KB (4,772 words) - 00:56, 18 November 2022
- A rocket is a vehicle, missile, or aircraft that obtains thrust by reaction to the ejection of fast-moving fluid from within a rocket engine ...39 KB (5,911 words) - 02:27, 16 December 2022
- 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
- J. Robert Oppenheimer The meaning of the "J" in J. Robert Oppenheimer has been the source of confusion among many. Historians Alice ...58 KB (8,808 words) - 01:10, 8 February 2023
- Ernest Rutherford, 1st Baron Rutherford of Nelson OM PC FRS (August 30, 1871 - October 19, 1937), widely referred to as Lord Rutherford, was ...17 KB (2,514 words) - 19:33, 13 February 2024
- Silk is a fine, soft and yet strong proteinaceous fiber that is naturally produced by certain arthropods, and with some forms, particularly that ...35 KB (5,365 words) - 20:11, 21 April 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
- 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
- Mercury, also called quicksilver (chemical symbol Hg, atomic number 80), is a chemical element and transition metal that at room temperature ...41 KB (5,903 words) - 16:12, 9 November 2022
- 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
- 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
- Microelectromechanical Systems (MEMS) are microscale devices and systems that integrate electronic components with mechanical ones. They are ...14 KB (2,096 words) - 10:39, 10 March 2023
- 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
- 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
- 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
- Salt is a mineral, composed primarily of sodium chloride, which is commonly eaten by humans. There are different forms of salt: unrefined salt ...36 KB (5,357 words) - 01:13, 21 April 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
- Fritz Haber (December 9, 1868 – January 29, 1934) was a German chemist who received the Nobel Prize in Chemistry in 1918 for developing a method ...12 KB (1,882 words) - 07:04, 15 April 2024
- Sphagnum is the common name and genus name for a group of mosses (Division Bryophyta) whose leaf-like appendages are adapted to absorb and retain ...14 KB (2,165 words) - 15:20, 27 April 2023
- 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
- Tanning is the process by which raw animal skins and hides are converted into leather. This process permanently alters the protein structure ...11 KB (1,861 words) - 04:26, 27 February 2023
- The Black Sea is an inland sea between southeastern Europe and the Anatolian peninsula (Turkey) and is ultimately connected to the Atlantic Ocean ...25 KB (3,749 words) - 18:07, 31 October 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
- 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
- Electrostatics is a branch of science that involves the investigation of phenomena related to what appear to be stationary electric charges. ...18 KB (2,558 words) - 16:05, 13 February 2024
- 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
- Electromagnetic radiation (EM radiation or EMR) takes the form of self-propagating waves in a vacuum or in matter. EM radiation has both electric ...22 KB (3,329 words) - 15:54, 13 February 2024
- Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than soft X-rays. The name ...28 KB (4,293 words) - 11:30, 18 April 2023
- A dye can generally be described as a colored substance that has a chemical affinity to the substrate to which it is being applied. The dye is ...13 KB (2,067 words) - 17:25, 12 February 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
- The chemical compound formaldehyde (also known as methanal) is a gas with a pungent smell. It is the simplest aldehyde. Its chemical formula ...18 KB (2,445 words) - 06:34, 1 April 2024
- 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
- Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living ...74 KB (10,725 words) - 07:36, 12 January 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
- 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
- Celsius (or centigrade) is a temperature scale named after the Swedish astronomer Anders Celsius (1701–1744), who first proposed such a system ...23 KB (3,406 words) - 23:47, 3 December 2023
- The electromagnetic (EM) spectrum is the range of all possible electromagnetic radiation. The "electromagnetic spectrum" (or just spectrum ...16 KB (2,367 words) - 15:55, 13 February 2024
- 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
- Category:Media Professionals Sarnoff, David David Sarnoff (February 27, 1891 – December 12, 1971) led the Radio Corporation of America (RCA ...14 KB (2,103 words) - 08:08, 28 January 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
- A laser (an acronym for Light Amplification by Stimulated Emission of Radiation) is an electronic-optical device that emits coherent radiation ...41 KB (6,333 words) - 06:55, 4 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
- In modern physics, the photon is the elementary particle responsible for electromagnetic phenomena. It is the carrier of electromagnetic radiation ...34 KB (4,943 words) - 20:26, 27 September 2023
- The Big Bang is the cosmological model of the universe whose primary assertion is that the universe has expanded into its current state from ...58 KB (8,668 words) - 03:46, 1 October 2023
- Category:Public number=30 | symbol=Zn | name=zinc | left=copper | right=gallium | above=- | below=Cd | color1= | color2=black transition metals ...18 KB (2,716 words) - 06:07, 13 June 2023
- Antimony (chemical symbol Sb, atomic number 51) is a metalloid with four allotropic forms. The stable form of antimony is a blue-white metal ...17 KB (2,369 words) - 06:33, 31 July 2023
- Dmitri Mendeleev or Dmitriy Ivanovich Mendeleyev (birth unknown – death, 1907) was a Russian chemist. He is credited as being the primary creator ...13 KB (1,999 words) - 16:30, 29 January 2024
- Mercury is the innermost and smallest planet in the solar system, orbiting the Sun once every 88 days. Its brightness ranges from about -2.0 ...35 KB (5,451 words) - 16:12, 9 November 2022
- Astrophysics is the branch of astronomy that deals with the physics of the universe. It involves studies of the physical properties (luminosity ...14 KB (1,947 words) - 18:28, 19 August 2023
- 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
- 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
- The Chandrasekhar limit limits the mass of bodies made from electron-degenerate matter, a dense form of matter which consists of atomic nuclei ...23 KB (3,300 words) - 01:16, 4 December 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
- A binary star is a star system consisting of two stars orbiting around their center of mass. For each member of a pair, the other is called its ...43 KB (6,669 words) - 17:43, 31 October 2023
- Sodium chloride, also known as common salt or table salt, is a chemical compound with the formula NaCl. Its mineral form is called halite. It ...16 KB (2,377 words) - 15:04, 27 April 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
- 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 development of the periodic table of the elements parallels the development of science and our understanding of the physical universe. It ...15 KB (2,217 words) - 15:59, 25 January 2023
- 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
- Vitamin E is the generic descriptor for any of a group of several related fat-soluble organic compounds, tocopherols and tocotrienols, that act ...53 KB (7,528 words) - 20:41, 3 May 2023
- Category:Politics and social sciences Category:Psychology Category:Psychologists Morgan, C. Lloyd [[File:C. Lloyd Morgan. Photogravure by Synnberg ...18 KB (2,586 words) - 21:54, 12 February 2024
- Coenzyme is any of a diverse group of small organic, non-protein, freely diffusing molecules that are loosely associated with and essential for ...22 KB (2,903 words) - 07:19, 6 June 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
- A flagellum (plural, flagella) is a long, whip-like projection or appendage of a cell composed of microtubules (long, slender, protein tubes ...15 KB (2,271 words) - 17:34, 28 March 2024
- 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
- A vacuum is a volume of space that is essentially empty of matter, so that gaseous pressure is much less than standard atmospheric pressure. ...37 KB (5,624 words) - 20:38, 21 April 2020
- Silver (chemical symbol Ag, atomic number 47) is a soft metal with a brilliant white luster that can take a high degree of polish. Along with ...20 KB (2,849 words) - 22:08, 29 January 2023
- An airline provides air transport services for passengers or freight. Airlines lease or own their aircraft with which to supply these services ...33 KB (4,986 words) - 07:02, 16 June 2023
- 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
- 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
- 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
- The solar wind is a stream of charged particles — a plasma — ejected from the upper atmosphere of the Sun. It consists mostly of electrons ...23 KB (3,443 words) - 00:46, 4 February 2023
- A fixed-wing aircraft, commonly called an airplane or aeroplane, (from the Greek: aéros- "air" and -planos "wandering") ...20 KB (3,021 words) - 07:09, 16 June 2023
- 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
- Matter is made of atoms, and atoms are made of electrons and quarks exchanging photons and gluons. Antimatter is made of anti-atoms, and anti ...23 KB (3,458 words) - 06:25, 31 July 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
- category:image wanted Game theory is a branch of applied mathematics comprising a family of mathematical models used for strategic analysis of ...30 KB (4,403 words) - 04:08, 18 April 2024
- Nature, broadly defined, refers to the physical (natural, material) world at all levels (subatomic to cosmic), especially when regarded as distinct ...63 KB (9,360 words) - 04:22, 11 March 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
- 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
- Subrahmanyan Chandrasekhar (Tamil: சுப்பிரமணியன் சந்திரசேகர்) (October 19, 1910, Lahore, British ...20 KB (2,980 words) - 13:44, 28 April 2023
- Cholesterol is an important sterol (a combination steroid and alcohol) and a neutral lipid that is a major constituent in the cell membranes ...23 KB (3,346 words) - 17:16, 10 December 2023
- Aum Shinrikyo, also known as Aleph, is a Japanese New Religious Movement which gained international notoriety in 1995, when it carried out a ...20 KB (2,989 words) - 17:50, 22 August 2023
- 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
- 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
- theory, the universe began as a mixture of hydrogen-1 (75 percent) and helium-4 (25 percent) with only traces of other light atoms. All the other elements ...30 KB (4,559 words) - 22:46, 7 December 2022
- Ricin ( ˈraɪsɨn ) is a protein derived from the seed of the castor oil plant (Ricinus communis) that is highly toxic to humans, as well as ...25 KB (3,716 words) - 18:51, 11 August 2022
- 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
- Chevron Corporation ( CVX ) is the world's fourth-largest non-government energy company. Headquartered in San Ramon, California, U.S., and ...26 KB (3,656 words) - 18:40, 8 December 2023
- James Watt (January 19, 1736 – August 25, 1819)Although a number of otherwise reputable sources give his date of death as August 19, 1819, ...20 KB (3,129 words) - 08:53, 1 April 2024
- 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
- In the context of spaceflight, a satellite is an object that has been placed into orbit by human endeavor. Such objects are sometimes called ...35 KB (4,993 words) - 00:11, 8 January 2024
- 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
- 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
- each second 600 billion kilograms of hydrogen-1 (single proton]]s) into 595.2 billion kilograms of helium-4 (2 protons combined with 2 neutrons ...42 KB (6,653 words) - 19:12, 7 February 2023
- The Royal Opera House, the United Kingdom's most important performing arts venue, is located in London's Covent Garden district. The ...22 KB (3,326 words) - 20:56, 21 December 2022
- The Manhattan Project was the project undertaken during World War II by the United States, the United Kingdom and Canada to develop the first ...52 KB (8,009 words) - 11:05, 9 March 2023
- Amber is the common name for fossil resin or tree sap that is appreciated for its inherent and interesting mixture of colors. Although not mineralized ...17 KB (2,724 words) - 02:46, 24 July 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
- 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
- Lavrentiy Pavlovich Beria (Georgian: ლავრენტი ბერია; Russian: Лаврентий Павлович Берия; March ...19 KB (2,858 words) - 17:56, 25 October 2022
- Lava is molten rock expelled by a volcano during an eruption. (When the molten rock is beneath the Earth's surface, it is called magma. ...28 KB (4,314 words) - 17:53, 25 October 2022
- A clock (from the Latin word cloca, meaning "bell") is an instrument for measuring time. In its most common form, in use since at least ...26 KB (3,970 words) - 22:10, 7 January 2024
- The Baltic Sea is a semi-enclosed inland sea located in Northern Europe. Considered an arm of the Atlantic Ocean, it is connected to it via the ...25 KB (3,903 words) - 03:20, 17 September 2023
- Joseph Priestley (March 13, 1733 – February 8, 1804) was an English chemist, philosopher, dissenting clergyman, and educator. As an educator ...19 KB (2,782 words) - 00:48, 11 August 2022
- Auschwitz was the largest of the German Nazi concentration and extermination camps. Located in southern Poland, it took its name from the nearby ...26 KB (4,084 words) - 17:54, 22 August 2023
- Chemical warfare is warfare (and associated military operations) using the toxic properties of chemical substances to kill, injure, or incapacitate ...61 KB (9,020 words) - 14:48, 5 December 2023
- In physics and chemistry, a plasma is one of the four principal states of matter. Plasma is typically an ionized gas, but it is usually considered ...35 KB (5,311 words) - 07:58, 24 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
- 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
- Robert Hutchings Goddard, Ph.D. (October 5, 1882 – August 10, 1945) was an American scientist and inventor who foresaw the possibility of space ...27 KB (4,141 words) - 21:27, 16 April 2023
- 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
- A parachute is a device used to slow the descent of a person or object falling through the atmosphere by creating drag. The atmosphere is usually ...30 KB (4,644 words) - 07:42, 18 November 2022
- 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
- Aneurin Bevan, usually known as Nye Bevan (November 15, 1897 – July 6, 1960) was a Welsh Labour politician. He was a key figure on the left ...28 KB (4,168 words) - 18:03, 27 July 2023
- 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
- A machine gun is a fully-automatic mounted or portable firearm, usually designed to fire rifle cartridges in quick succession from an ammunition ...29 KB (4,662 words) - 04:50, 5 November 2022
- 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
- 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
- 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
- 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
- Max Karl Ernst Ludwig Planck (April 23, 1858 – October 4, 1947) was a German physicist who is widely regarded as one of the most significant ...30 KB (4,449 words) - 00:57, 9 November 2022
- 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
- Irwin Allen Ginsberg (June 3, 1926 – April 5, 1997) was an American poet, most famous for being a founding member of a major literary movement ...22 KB (3,314 words) - 18:29, 21 July 2023
- Bird migration refers to the regular (and often seasonal) journeys to and from a given area undertaken by all or part of a bird population. Not ...22 KB (3,318 words) - 17:57, 31 October 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
- The history of North Korea formally begins with the establishment of Democratic People's Republic of Korea in 1948. In the aftermath of the ...33 KB (5,024 words) - 16:59, 7 May 2021
- Yellowstone National Park is a U.S. National Park located in the western states of Wyoming, Montana, and Idaho. It is the first and oldest national ...33 KB (5,106 words) - 09:57, 23 May 2023
- ==Stalinist development== ===Planning=== At the Fifteenth Party Congress of the Communist Party of the Soviet Union in December 1927, Josef Stalin ...33 KB (4,974 words) - 12:47, 1 February 2024
- Detroit is the largest city in the U.S. state of Michigan and the seat of Wayne County. It is located in southeastern Michigan on the Detroit ...33 KB (4,747 words) - 10:07, 29 January 2024
- Nissan Motor Company, Ltd. shortened to Nissan is a multinational automaker headquartered in Japan that manufactures automobiles, trucks, buses ...26 KB (3,647 words) - 09:56, 11 March 2023
- 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
- Samael Aun Weor (March 6, 1917 - December 24, 1977) was a spiritual teacher, occultist, esotericist, and author. He established himself in Mexico ...39 KB (5,837 words) - 11:35, 6 September 2022
- Toyota Motor Corporation Toyota Jidōsha Kabushiki-gaisha, or Toyota in short, is a Japanese automaker. It is the world's second largest ...43 KB (6,055 words) - 04:51, 1 May 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
- Charles André Joseph Marie de Gaulle (November 22, 1890 – November 9,1970), in France commonly referred to as général de Gaulle, was a French ...41 KB (6,470 words) - 02:09, 13 January 2023
- A steam engine is a heat engine that performs mechanical work using steam as its working fluid. Encyclopedia Britannica, [http://www.britannica ...41 KB (6,343 words) - 19:56, 9 February 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
- 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
- Harry S. Truman (May 8, 1884 – December 26, 1972) was the thirty-third President of the United States (1945–1953); as Vice President, he ...47 KB (7,091 words) - 13:31, 24 January 2023
- George Frost Kennan (February 16, 1904 – March 17, 2005) was an American diplomat, political scientist, and historian, best known as "the ...39 KB (5,908 words) - 17:04, 10 April 2023
- 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
- North Korea, officially the Democratic People's Republic of Korea (the DPRK), is an East Asian country in the northern half of the Korean ...72 KB (9,967 words) - 06:32, 16 November 2022
- 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
- Apollo 11 was the spaceflight that first landed humans on the Moon. Commander Neil Armstrong and lunar module pilot Buzz Aldrin formed the American ...97 KB (14,466 words) - 15:45, 11 August 2023
- Hungary, officially in English the Republic of Hungary, is a landlocked country in the Carpathian Basin of Central Europe. After a Celtic and ...107 KB (15,967 words) - 21:14, 9 February 2024
