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- |elName=Helium '''Helium''' is a [[Chemical elements|chemical element]], typically found as a [[gas]938 bytes (135 words) - 16:58, 1 January 2021
- 12 bytes (1 word) - 16:21, 27 June 2008
- 12 bytes (1 word) - 07:32, 15 January 2008
- {{Basic elemental def|Helium}}66 bytes (7 words) - 13:55, 28 April 2010
- 3 bytes (2 words) - 23:16, 9 June 2008
- 9 bytes (1 word) - 15:19, 12 June 2008
- *[[Superfluidity]] of Helium94 bytes (11 words) - 09:53, 7 December 2022
- 82 bytes (10 words) - 15:00, 14 June 2008
- #REDIRECT [[Helium/Periodic table of elements]]47 bytes (6 words) - 08:22, 6 March 2024
- ...ordinary pressures, but will readily solidify by increasing the pressure. Helium-4 (<sup>4</sup>H) has a sharp transition temperature at 2.174K. Above this549 bytes (84 words) - 22:08, 14 April 2011
- 13 bytes (2 words) - 15:20, 12 June 2008
- 84 bytes (10 words) - 22:13, 14 April 2011
- 29 bytes (2 words) - 15:21, 12 June 2008
- 9 bytes (2 words) - 15:15, 12 June 2008
- 984 bytes (137 words) - 06:57, 6 March 2024
- 105 bytes (12 words) - 15:29, 17 May 2010
- ...Note:Solid Helium is not possible under normal atmospheric pressure, See [[Helium/Melting point]] for details.</noinclude>174 bytes (23 words) - 06:34, 16 December 2008
- #REDIRECT [[Helium/Ground state electron configuration]]56 bytes (6 words) - 13:11, 13 June 2008
- 1 bytes (0 words) - 23:15, 9 June 2008
- 12 bytes (2 words) - 15:17, 12 June 2008
- 15 bytes (1 word) - 12:17, 27 June 2008
- Auto-populated based on [[Special:WhatLinksHere/Helium]]. Needs checking by a human.2 KB (323 words) - 12:57, 15 March 2024
- 3 bytes (1 word) - 13:50, 29 June 2008
- 6 bytes (0 words) - 15:19, 12 June 2008
- ...cienceblogs.com/startswithabang/2010/03/why_is_helium_so_scarce.php Why is Helium so Scarce?] - an introductory blog post on the limited availability of this197 bytes (29 words) - 20:30, 17 March 2010
- 2 bytes (1 word) - 18:00, 10 June 2008
- <includeonly>Noble gas</includeonly><noinclude>Helium is a [[noble gas]].</noinclude>85 bytes (11 words) - 05:50, 6 March 2024
- 27 bytes (4 words) - 16:24, 22 April 2011
- 28 bytes (4 words) - 16:25, 22 April 2011
- 14 bytes (3 words) - 13:11, 13 June 2008
Page text matches
- ...Note:Solid Helium is not possible under normal atmospheric pressure, See [[Helium/Melting point]] for details.</noinclude>174 bytes (23 words) - 06:34, 16 December 2008
- #REDIRECT [[Helium]]20 bytes (2 words) - 18:42, 31 May 2008
- {{Basic elemental def|Helium}}66 bytes (7 words) - 13:55, 28 April 2010
- #REDIRECT [[Helium/Periodic table of elements]]47 bytes (6 words) - 08:22, 6 March 2024
- #REDIRECT [[Helium/Ground state electron configuration]]56 bytes (6 words) - 13:11, 13 June 2008
- |elName=Helium '''Helium''' is a [[Chemical elements|chemical element]], typically found as a [[gas]938 bytes (135 words) - 16:58, 1 January 2021
- *[[Superfluidity]] of Helium94 bytes (11 words) - 09:53, 7 December 2022
- ...bric structure, often shaped like an [[airship]] and usually filled with [[helium]] that is restrained by a cable attached to the ground or a vehicle. Moore ...shaped (i.e. blimp shaped) with fins to stabilise them, but relying upon [[helium]] alone for lift897 bytes (135 words) - 17:47, 27 January 2008
- helium nucleus; particle of charge 2''e'' and mass 4 u.91 bytes (12 words) - 05:11, 12 June 2009
- ...ordinary pressures, but will readily solidify by increasing the pressure. Helium-4 (<sup>4</sup>H) has a sharp transition temperature at 2.174K. Above this549 bytes (84 words) - 22:08, 14 April 2011
- ...cienceblogs.com/startswithabang/2010/03/why_is_helium_so_scarce.php Why is Helium so Scarce?] - an introductory blog post on the limited availability of this197 bytes (29 words) - 20:30, 17 March 2010
- A nuclear reactor using [[helium]] gas as a coolant, that might provide process heat for production of zero-196 bytes (31 words) - 02:53, 7 April 2024
- ...ted fabric structure, often shaped like an airship and usually filled with helium, that is restrained by a cable attached to the ground or a vehicle.191 bytes (29 words) - 10:21, 11 September 2009
- ...o being filled with a gas less dense than air or lighter than air (such as helium or hydrogen).166 bytes (28 words) - 23:45, 3 September 2009
- ...ilizes a [[nucleus]] by emitting an [[alpha particle]], the nucleus of a [[helium]] atom (He<sup>2+</sup>).174 bytes (23 words) - 09:22, 5 July 2008
- ...tio oxygen/helium of 32/4 = 8 leads to the prediction by Graham's law that helium will diffuse about 2.8 times (the square root of 8 is 2.83) as quickly as o1 KB (165 words) - 07:59, 29 March 2008
- a medium-sized, next-gen, uranium-fueled, graphite-moderated, helium-cooled [[nuclear reactor|reactor]] that can provide heat for industrial pro232 bytes (25 words) - 09:57, 25 January 2023
- <includeonly>Noble gas</includeonly><noinclude>Helium is a [[noble gas]].</noinclude>85 bytes (11 words) - 05:50, 6 March 2024
- ...tomic nucleus by emitting an [[alpha particle]], which is the nucleus of a helium atom. ...forms of radiation alpha particles are also one of the primary sources of helium on earth.744 bytes (120 words) - 16:27, 19 December 2007
- ...ted by a secondary cooling devise to help remove the heat generated by the helium pump. The secondary cooling devise is generally a circulating water cooler.957 bytes (151 words) - 15:21, 2 August 2008
- ...argo]] from the [[United States of America]] (which had a near monopoly on Helium supplies at the time) flammable [[Hydrogen]] was used instead.1,019 bytes (159 words) - 13:19, 2 February 2023
- '''Noble gases''' are a group of inert [[gas]] [[element]]s, including [[helium]], [[neon]], [[argon]], [[krypton]], [[xenon]], and [[radon]]. In an inert339 bytes (45 words) - 22:27, 20 May 2022
- The vast majority of blimps are filled with [[Helium]] which provides their buoyancy. Blimps that use hot air rather than Helium are called [[thermal airships]].1 KB (182 words) - 12:01, 10 March 2008
- {{r|Helium}}262 bytes (30 words) - 17:56, 22 February 2011
- {{r|Helium}}379 bytes (50 words) - 05:22, 3 September 2009
- {{r|Peak helium}}422 bytes (57 words) - 09:03, 15 April 2010
- using an unheated gas such as [[Helium]].531 bytes (85 words) - 08:15, 8 June 2009
- ...tion]] and providing a new approach to the placement of [[hydrogen]] and [[helium]].616 bytes (84 words) - 06:33, 6 March 2024
- {{r|Helium}}456 bytes (59 words) - 20:58, 11 January 2010
- {{r|Helium}}553 bytes (74 words) - 11:09, 11 January 2010
- {{r|Helium}}540 bytes (71 words) - 17:12, 11 January 2010
- {{r|Helium}}624 bytes (83 words) - 11:58, 31 December 2022
- {{r|Helium}}515 bytes (67 words) - 19:03, 11 January 2010
- ...[reactor moderator#graphite|graphite-moderated]], [[reactor coolant#helium|helium-cooled]] reactor with a once-through [[uranium]] fuel cycle. Its primary pu2 KB (319 words) - 16:20, 8 January 2023
- {{r|Helium}}576 bytes (76 words) - 17:17, 11 January 2010
- ...s where the nuclei of several [[Hydrogen]] atoms fuse to form an atom of [[Helium]]. Every star above the main sequence will be a luminous [[giant star]], n ...rugal rate at which the small, dim red dwarfs turn their [[Hydrogen]] to [[Helium]] make them long-lived, and the Universe is too young for any red dwarf to3 KB (519 words) - 12:22, 12 April 2022
- {{r|Helium}}688 bytes (92 words) - 05:21, 19 July 2010
- ...he scheme: <sup>238</sup>U---><sup>234</sup>[[Thorium|Th]] + <sup>4</sup>[[Helium|He]] where the energy released in the transformation is Q=4.25[[Electron vo2 KB (381 words) - 22:48, 15 June 2010
- ...ted by a gas contained within an envelope. The most typical gas used is [[helium]].807 bytes (132 words) - 16:55, 2 November 2021
- ...ing around it. It mainly consists of [[hydrogen]], which it converts to [[helium]] through a process of [[nuclear fusion]], providing the heat and light tha Hydrogen, about 75%; helium, about 25%; at least 70 other elements make up the remaining 1 to 2 percent3 KB (381 words) - 20:54, 21 July 2020
- ...lope and the ambient air. (This is in contrast to the more common use of [[Helium]] to provide lift.) Currently all thermal airships use hot air, as used in Thermal airships have the advantage of being less expensive than [[helium]]-based airships. They are also routinely deflated after each flight and c4 KB (586 words) - 06:17, 12 September 2013
- {{r|Helium}}1 KB (164 words) - 09:18, 6 March 2024
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- {{r|Helium}}1 KB (155 words) - 17:08, 22 March 2024
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- {{r|Helium}}1 KB (173 words) - 05:43, 6 March 2024
- ...[elementary charge]]. An α-particle is in fact the nucleus of the [[helium]]-4 [[isotope]], consisting of two [[proton]]s and two [[neutron]]s, thus h ...ption required </ref> in which it was explained that α-particles are helium atoms that have lost their negative charge. In 1908 it was not yet known th3 KB (412 words) - 20:02, 20 September 2021
- {{r|Helium}}1 KB (194 words) - 12:49, 15 March 2024
- {{r|Helium}}1 KB (193 words) - 09:18, 6 March 2024
- {{r|Helium}}1 KB (197 words) - 12:49, 15 March 2024
- {{r|Helium}}1 KB (199 words) - 12:57, 15 March 2024
- {{r|Helium}}1 KB (199 words) - 12:57, 15 March 2024
- {{r|Helium}}1 KB (202 words) - 09:18, 6 March 2024
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- {{r|Helium}}1 KB (201 words) - 12:57, 15 March 2024
- ...ic and subatomic particles, such as [[electron]]s (β-radiation) and [[helium]] nuclei (α-radiation), or of high-energy massless particles, [[photo ...e a (theoretical) [[rest mass]] of zero. The α and β particles (helium nuclei and electrons) have rest mass not equal to zero; the same is true f3 KB (523 words) - 21:16, 22 July 2010
- {{r|Helium}}2 KB (210 words) - 09:18, 6 March 2024
- {{r|Helium}}2 KB (208 words) - 12:49, 15 March 2024
- ...when the Earth first formed its atmosphere mostly contained hydrogen and [[helium]], but the gravity was not strong enough to hold onto these light gases and ...[[Jupiter]], [[Saturn]], [[Uranus]] and [[Neptune]] have more hydrogen and helium in their atmosphere. Being further out from the sun they received large amo3 KB (509 words) - 11:48, 2 February 2023
- {{r|Helium}}1 KB (209 words) - 12:57, 15 March 2024
- {{r|Helium}}2 KB (215 words) - 09:18, 6 March 2024
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- A '''very high temperature reactor''' is a nuclear reactor using helium gas as a coolant, that might provide process heat for production of zero-ca1 KB (194 words) - 18:15, 4 January 2022
- {{r|Helium}}2 KB (224 words) - 12:49, 15 March 2024
- {{r|Helium}}2 KB (232 words) - 09:18, 6 March 2024
- {{r|Helium}}2 KB (218 words) - 12:57, 15 March 2024
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- {{r|Helium}}2 KB (247 words) - 12:57, 15 March 2024
- {{r|Helium}}2 KB (245 words) - 17:08, 22 March 2024
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- {{r|Helium}}2 KB (256 words) - 09:18, 6 March 2024
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- ...normal [[boiling point]]s of the so-called permanent [[gases]] (such as [[helium]], [[hydrogen]], [[neon]], [[nitrogen]], [[oxygen]], and normal [[Earth's a ...element in cryogenics and is legally purchasable around the world. Liquid helium is also commonly used and allows for the lowest attainable temperatures to7 KB (1,043 words) - 09:37, 6 March 2024
- {{r|Helium}}2 KB (280 words) - 09:18, 6 March 2024
- ..., about 51 K (−222 °C), and for [[hydrogen]], about 202 K (-71 °C). Thus, helium and hydrogen will warm during a J-T expansion at typical room temperatures. .... For this reason, a simple Linde cycle cannot normally be used to liquefy helium, hydrogen and [[neon]].7 KB (1,081 words) - 05:42, 4 September 2013
- ..., about 51 K (−222 °C), and for [[hydrogen]], about 202 K (-71 °C). Thus, helium and hydrogen will warm during a J-T expansion at typical room temperatures. .... For this reason, a simple Linde cycle cannot normally be used to liquefy helium, hydrogen and [[neon]].7 KB (1,084 words) - 05:41, 4 September 2013
- ...aluminium, calcium magnesium, and iron). The lightest elements, hydrogen, helium and lithium, were formed during the [[Big Bang]]. Heavier elements were cre ...omposition of interstellar matter, by mass, is about 70.4% hydrogen, 28.1% helium and 1.5% heavier elements, similar to the ratios measured in the Sun, other7 KB (987 words) - 10:12, 30 May 2009
- {{r|Helium}}2 KB (289 words) - 12:57, 15 March 2024
- ...r Blimp N2A to Europe from 1972 to 1986. Includes a very complete list of helium airship (i.e. does not include hot air airships) [http://www.blimp-n2a.com/ ...u/english/products.html RosAero] — Russian airship company that makes both Helium and hot air airships12 KB (1,729 words) - 20:00, 14 February 2010
- Auto-populated based on [[Special:WhatLinksHere/Helium]]. Needs checking by a human.2 KB (323 words) - 12:57, 15 March 2024