Re:Launching and landing rockets: A comparison between Blue ...
by gfodor on Wednesday December 23, 2015 @12:44PM
(#10784483)
The point was that the measurement is what it can impart on a payload (presumably one going UP.) So your point doesn't seem relevant.
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Re:Launching and landing rockets: A comparison between Blue ...
by jzila on Wednesday December 23, 2015 @01:55PM
(#10784908)
I think the point was to illustrate the difference in energy requirements for the rocket to impart to the payload.
That said, re-reading Elon's article, he did explicitly say _kinetic_ energy in the 120GJ figure, in which case 0 is the right number for New Shepard at 100km.