News tagged with liquid hydrogen

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Environmentally friendly rockets

(PhysOrg.com) -- Many rockets, satellites, and spacecraft are driven by hydrazine, sometimes with an oxidizing agent like nitric acid or dinitrogen tetroxide. When filling tanks with these highly toxic substances, ...

May 27, 2011 5 / 5 (3) 1 | with audio podcast

The water dance

Water (H2O) is a unique molecule that holds amazing properties. Scientists have a good grasp of the structure and chemistry of individual molecules of water. But understanding how large numbers of these m ...

Nov 29, 2010 4.6 / 5 (9) 0 | with audio podcast

Water still has a few secrets to tell

(PhysOrg.com) -- We are used to thinking of water as a substance with relatively few secrets left. Its basic structure has been studied by high school students for decades, and water is considered essential ...

Jan 21, 2010 3.7 / 5 (23) 14 | with audio podcast feature