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Comment Re:oh jeez. (Score 1) 140

... Helium .. has roughly half of the lifting capacity of Hydrogen....

not really, the "lifting capacity" is from the difference in mass between lifting gas and surrounding air. Air is ~29 g/mol, so the ratio of lifting capacity of H2:He is

[(29 - 2) / 29] : [(29 - 4) / 29] = 27/25,

works out at 8% difference. The containment vessel's weight is typically more significant than the gas itself in a lighter-than-air craft.

Balloons with He3 give only 3% more lift than He4, lunacy!

Comment The War of the Worlds, Ch. Two: The Falling Star (Score 1) 122

An enormous hole had been made by the impact of the projectile, and the sand and gravel had been flung violently in every direction over the heath, forming heaps visible a mile and a half away. The heather was on fire eastward, and a thin blue smoke rose against the dawn. Link here (e.g.)

The world is coming to an end--save your buffers!

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