Elon Musk
@elonmusk · 26 янв. 2015 г.
Ion thrusters are great, but have extremely tiny force (photon thruster even less). Must have more thrust than weight or you don't go up.
Elon Musk
@elonmusk
Final one: anything launched by a railgun (if you could ever reach ~ Mach 27) would explode upon exiting the barrel in our dense atmosphere
08:28 · 26 января 2015 г. · 0 просмотров
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