curprev12:0612:06, 18 May 2020 Aypactalkcontribs 17,349 bytes+79 Corrected an error in the Carnot-limited energy density of LN2. The number used was the realistically achieved number rather than Carnot-limited (see cited source).undo
curprev15:5015:50, 3 April 2020 Geoffrey.landistalkcontribs 17,368 bytes+137 reordered sections to improve logical flow: moved vehicles out of the lede, moved "criticism" to follow advantages; moved other uses and tanks to bodyundo