3 ms·
(Roughly speaking) Kinetic weapon has as much energy as you spent getting it on orbit from surface, thus fuel in the rocket provides useful estimate and compari
by vl 6y ago
(Roughly speaking) Kinetic weapon has as much energy as you spent getting it on orbit from surface, thus fuel in the rocket provides useful estimate and comparison point for energy available. To get from orbit to surface you actually need to slow down, ie reduce energy.
- numpad0 6y agoI'm saying you can pick up a large enough rock floating in solar orbit and nudge it to coincide with Earth using electric propulsion. Basically forcing a dinosaur wipeout event in a small scale. Sky's the limit for energy available.
- vl 6y agoBut the problem is that for any rock large enough it will require a lot of energy and time, thus expensive and gives advanced warning.