Search results for "Helium-4" - New World Encyclopedia
From New World Encyclopedia
- 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
- 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
- In particle physics, a lepton is one of the elementary (or fundamental) particles that are the building blocks of matter. Elementary particles ...8 KB (1,168 words) - 21:59, 25 October 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
- 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
- Lawrencium (chemical symbol Lr, atomic number 103), once known as eka-lutetium, is a radioactive synthetic element in the periodic table. Its ...6 KB (798 words) - 17:58, 25 October 2022
- 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
- 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
- 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
- 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
- A notable exception to this general trend is the helium-4 nucleus ... curve of binding energy. It also makes helium-4 the most common product ...39 KB (6,029 words) - 23:53, 16 November 2022
- Lev Davidovich Landau (January 22, 1908 – April 1, 1968) was a prominent Soviet physicist who made fundamental contributions to many areas ...7 KB (1,038 words) - 22:05, 25 October 2022
- Berkelium (chemical symbol Bk, atomic number 97) is a synthetic, radioactive chemical element, classified as an actinide. It was first synthesized ...7 KB (911 words) - 11:01, 28 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
- Mendelevium (chemical symbol Md (formerly Mv), atomic number 101), also known as unnilunium (symbol Unu), is a synthetic element in the periodic ...6 KB (778 words) - 04:30, 9 November 2022
- 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
- Vapor pressure (or vapour pressure) is the pressure of a vapor in equilibrium with its non-vapor phases. Under appropriate conditions of temperature ...8 KB (1,238 words) - 14:35, 3 May 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
- 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
- of Lithium-7 and a proton producing two Helium-4 nuclei. The temperature necessary for this reaction is just below the temperature necessary ...26 KB (3,884 words) - 04:37, 22 November 2023
- In particle physics, a quark is one of the elementary (or fundamental) particles that are the building blocks of matter. Elementary particles ...22 KB (3,412 words) - 15:31, 7 December 2022
- Modern geologists and geophysicists consider the age of Earth to be around 4.54 billion years (4.54 9 years).1997. [http://pubs.usgs.gov/gip/geotime/age ...34 KB (5,149 words) - 06:44, 16 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 (5,016 words) - 16:30, 14 May 2024
- 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
- 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
- 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
- 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
- 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
- In nuclear physics, beta decay is a type of radioactive decay involving the emission of beta particles. Beta particles are high-energy, high ...10 KB (1,458 words) - 17:45, 29 September 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
- 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
- as a helium white dwarf composed chiefly of helium-4 nuclei. Owing to the time this process takes, it is not thought to be the origin of observed ...72 KB (10,792 words) - 18:14, 4 May 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
- 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
- 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
- Carlsbad Caverns National Park is a United States National Park located in the southeastern corner of New Mexico near the city of Carlsbad, where ...19 KB (2,927 words) - 15:25, 27 November 2023
- Curium (chemical symbol Cm, atomic number 96) is a radioactive, metallic, transuranic element "Transuranic elements" are the chemical ...10 KB (1,354 words) - 06:46, 12 January 2024
- Californium (chemical symbol Cf, atomic number 98) is a chemical element in the periodic table. A radioactive transuranic element, ...11 KB (1,466 words) - 18:27, 25 November 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
- 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
- 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
- Infrared astronomy is the branch of astronomy and astrophysics that studies objects as they would appear in the infrared (IR) region of the electromagnetic ...11 KB (1,589 words) - 19:23, 5 March 2024
- of alpha particles (corresponding to nuclei of helium-4). Alpha decay has been observed (in 2003) in only 180W, the lightest and rarest of these isotopes ...17 KB (2,431 words) - 18:45, 2 May 2023
- 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
- 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
- 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
- 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
- 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
- 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
- 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
