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A comment on The Tyranny of the Rocket Equation (2012). Parent comment

Re:The Tyranny of the Rocket Equation (2012) by 2trill2spill on Friday June 29, 2018 @06:20PM (#17428290)
Yea, but a catapult or railgun would be fine for water, certain foods and other durable goods. Then the crew could take a smaller, cheaper rocket up.
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Re:The Tyranny of the Rocket Equation (2012) by zyxwvu on Friday June 29, 2018 @08:09PM (#17428789)
That's true. I wonder what the energy use would be in comparison to chemical rockets. And if it would be inherently safer since it wouldn't be moving via a controlled explosion.
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