7 ms·
It’s more than twice(1) as easy to make a rocket-propelled bullet than a rocket-propelled vehicle! 1) It’d be exactly twice as easy but for Tsiolkovsky!
by RangerScience 10mo ago
It’s more than twice(1) as easy to make a rocket-propelled bullet than a rocket-propelled vehicle!
1) It’d be exactly twice as easy but for Tsiolkovsky!