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Dr Who

Up to date as of January 31, 2010

From TARDIS Index File, the free Doctor Who reference.

Helium is a light element which is a gas at room temperature.

When Humans breathe it in, their voices become high-pitched. Gallifreyans may also be affected but have a respiratory bypass system that allows them to avoid inhaling it. (DW: The Robots of Death)

Wikipedia
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This article uses material from the "Helium" article on the Dr Who wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

Halo

Up to date as of February 08, 2010

From Halopedia, the Halo Wiki

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There is more information available on this subject at Helium on the English-language Wikipedia.

Helium, symbolised as He, is a colourless, odourless, tasteless, non-toxic, inert monatomic chemical element that heads the noble gas series in the periodic table and whose atomic number is 2. Its boiling and melting points are the lowest among the elements and it exists only as a gas except in extreme conditions. Extreme conditions are also needed to create the small handful of helium compounds, which are all unstable at standard temperature and pressure. In its most common form, helium-4, it has two neutrons in its nucleus, while a second, rarer, stable isotope called helium-3 contains just one neutron. The behaviour of liquid helium-4's two fluid phases, helium I and helium II, is important to researchers studying quantum mechanics (in particular the phenomenon of superfluidity) and to those looking at the effects that temperatures near absolute zero have on matter (such as superconductivity).

Helium is the second most abundant and second lightest element in the known universe, and is one of the elements believed to have been created in the Big Bang. In the modern universe almost all new helium is created as a result of the nuclear fusion of hydrogen in stars. On Earth helium is rare, and almost all of that which exists was created by the radioactive decay of much heavier elements (alpha particles are helium nuclei).

Helium is present on other planets such as Te and Balaho.[1] Due to its lightness, helium also fills a good number of a Huragoks' (Engineer) dorsal sacs.[2]

Sources

  1. Bestiarum
  2. Halo: Contact Harvest pg. 187

This article uses material from the "Helium" article on the Halo wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

Starwars

Up to date as of February 04, 2010

From Wookieepedia, the Star Wars wiki.

Helium was an elemental gas found on many worlds, including the atmosphere of Dorin where it coupled with Dorin gas. It was also created by nuclear fusion in stars.

Mynocks were known to have an allergic reaction to helium causing to them be become bloated and die.

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This article uses material from the "Helium" article on the Starwars wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.







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