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Aug 23, 2018 at 19:51 comment added Mark Agree, this would get my +1 if it contained a short description of the rocket equation.
Aug 23, 2018 at 18:44 comment added Carl Witthoft True, but short on details. You should at least link to the en.wikipedia.org/wiki/Tsiolkovsky_rocket_equation
Aug 23, 2018 at 12:17 comment added SF. ...especially that the mass that reaches the orbit is of order of 5% or less of the launch mass. It's pretty hard to make a rocket that would weigh less than 5% of the fuel it carries, never mind fitting any meaningful payload in that!
Aug 23, 2018 at 1:16 comment added david62225 Searched specifically for this and it seems to be the case. Thanks.
Aug 23, 2018 at 1:15 vote accept david62225
Aug 23, 2018 at 1:02 history answered Andy CC BY-SA 4.0