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I can verify the effect temperature has on gas comment in the article. Most aircraft (all military) measure the fuel in pounds not gallons. partly, cus it's easier to figure wieght before takoff. But we're talking 4,000 pounds of gas in a military Helo. Fighter jets use 30-60,000 pounds. Cargo aircraft... I have no idea but it's a bunch. So, if we were measureing that in gallons or volume, and we had a 5 degree temp change (very common) That could mean a half an hour miscalculation in flight time or more. When measureing in pounds. Pounds is pounds no matter what the temp is.
And aviation fuel cells are also collapseable to keep the evaporation to a minimum.
That's pretty cool, I never though to relate that to my cars...
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