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Hydrogen Bomb

Very brief description of hydrogen bomb from Eric Weisstein's World of Physics, with links to info on atomic bombs.

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http://scienceworld.wolfram.com/physics/HydrogenBomb.html

Liquid Helium

Kamerlingh Onnes worked for many years to liquify the element which persisted as a gas to the lowest temperature. Using liquid air to produce liquid hydrogen and then the hydrogen to jacket the ...

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http://hyperphysics.phy-astr.gsu.edu/hbase/lhel.html#c1

Hydrogen Spectrum

The basic hydrogen energy level structure is in agreement with the Bohr model. Common pictures are those of a shell structure with each main shell associated with a value of the principal quantum ...

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http://hyperphysics.phy-astr.gsu.edu/hbase/hyde.html#c4

Heavy Water Production - Nuclear Weapons

Heavy water, D1O, is water in which both hydrogen atoms have been replaced with deuterium, the isotope of hydrogen containing one proton and one neutron. It is present naturally in water, but in only ...

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http://www.fas.org/nuke/intro/nuke/heavy.htm

Hydrogen and Future Energy Sources

Where will our energy come from in the future? Find out about hydrogen fuell cells and other ideas that might change the way we produce energy.

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http://www.energyquest.ca.gov/story/chapter20.html

Isotopes and Radioactivity

Atoms of the same element can have different numbers of neutrons; the different possible versions of each element are called isotopes. For example, the most common isotope of hydrogen has no neutrons ...

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http://www.colorado.edu/physics/2000/isotopes/index.html