Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

> ...and realistically at double or triple that rate to minimize fuel consumption.

But that’s the whole point, with traditional rockets every second spent on the way up is wasted fuel combatting the cumulative force of gravity.

But if your energy is being beamed up, as long as that energy is enough to overcome gravity, you eventually achieve orbit. You’re no longer burning a limited resource just to “hover + 1”.

I’m not saying it works, but it does fundamentally change the equation if you can beam “fuel” to the rocket on the way up.

Unfortunately energy =/= fuel. In the end, mass has to exit the rocket at high velocity out one end in order to provide acceleration in the opposite direction, and that mass is limited.






Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: