Search results for "Helium-4" - New World Encyclopedia
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- Pyotr Leonidovich Kapitsa discovered that helium-4 has almost no viscosity ... Helium-4 (the most common isotope of helium) has two different liquid ...32 KB (4,897 words) - 15:19, 25 January 2023
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- When liquid helium-4 is cooled to a temperature close to absolute zero, it acquires an unusual set of properties known as superfluidity, and ...7 KB (1,079 words) - 13:54, 28 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
- 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
- Uraninite is a uranium-rich, radioactive mineral that is composed mainly of uranium dioxide (UO2). It is black or brownish and the principal ...4 KB (526 words) - 13:35, 3 May 2023
- The properties of lasers and masers, superfluid helium-4 and Bose–Einstein ... *The atom helium-4 (4He) is made of 2 protons, 2 neutrons and 2 electrons ...10 KB (1,425 words) - 17:22, 22 December 2022
- Phenomenological theory of superfluidity in helium-4 was created by ... Although the phenomenologies of the superfluid states of helium-4 ...15 KB (2,275 words) - 17:44, 28 March 2024
- thumbnail|A figurative depiction of the helium-4 atom. In the nucleus, the ... in a small atomic nucleus like that of helium-4, in which the two protons ...13 KB (1,903 words) - 06:57, 21 August 2023
- Pyotr Leonidovich Kapitsa discovered that helium-4 has almost no viscosity ... Helium-4 (the most common isotope of helium) has two different liquid ...32 KB (4,897 words) - 15:19, 25 January 2023
- During detonation, neutrons split lithium-6 into helium-4 and tritium; the tritium then fuses with deuterium, producing more neutrons. As this process ...18 KB (2,638 words) - 16:50, 5 November 2022
- svg|thumb|250px|Alpha radiation consists of helium-4 nuclei and is readily stopped by a sheet of paper. Beta radiation, consisting of electrons, ...13 KB (1,992 words) - 08:22, 23 July 2023
- In particle physics, fermions are a group of elementary (or fundamental) particles that are the building blocks of matter. In the Standard Model ...16 KB (2,185 words) - 17:26, 26 March 2024
- 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
- 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
- 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
- u), the deuteron has 2.014 u, and the helium-4 nucleus has 4.0026u. Thus: ... the binding energy per nucleon of the helium-4 nucleus is unusually high ...22 KB (3,405 words) - 00:39, 17 November 2022
- and 2 neutrons), giving another element, plus helium-4. In many cases this process continues through several steps of this kind, including other ...18 KB (2,740 words) - 00:29, 17 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
- |- | 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
- 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
- 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
- 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
- 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
- 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
- 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
