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@haussbrandt: @Dr_Snaut: @piotreek88: @Enzo_Molinari: Tutaj "całość":

If u saw @TheSimpsons and wonder why @SpaceX doesn't use an electric rocket to reach orbit, it is cuz that is impossible

Reason is Newton's Third Law. In vacuum, there is nothing to "push" against. You must react against ejected mass.

And pls don't ask me about space elevators until someone at least builds a carbon nanotube structure longer than a footbridge