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total amount if energy won't be the same as to get something into orbit with rockets, first because rockets have to carry their own fuel, second because it's fa
by ithkuil 13y ago
total amount if energy won't be the same as to get something into orbit with rockets, first because rockets have to carry their own fuel, second because it's far more efficient to move by displacing a very heavy reaction mass (the earth) rather than displacing a light reaction mass (which the rocket is carrying)