VC10er From United States of America, joined Feb 2007, 3389 posts, RR: 14 Posted (5 years 8 months 3 weeks 4 days 5 hours ago) and read 2944 times:
After spending my life dreaming since the 1960's when a Star Trek shuttle was powered by someting else...no fire, no exaust...all the way to today when our dreams of flying are less similar than a lawn mower and more like the flying, gravity defying Star Wars like crafts? Do we have a hunch how to do it? is it Ion power? Is it just a dream? I am confident mankind will do it, unfortunately I will be gone for a long, long time?
And naturally, what number would Boeing use!!!
The world is missing love, let's use our flights to spread it!
DocLightning From United States of America, joined Nov 2005, 22963 posts, RR: 62
Reply 2, posted (5 years 8 months 3 weeks 4 days 2 hours ago) and read 2882 times:
Honestly, if we're going to do crewed starflight, we're going to need a *lot* of energy and fusion is the only thing that makes sense. Second only to Star Trek's matter/antimatter drives (which are horribly dangerous and use outrageously expensive fuel that is equally horribly dangerous), fusion fuel carries more energy per unit mass than any other fuel. Bussard ramscoops could provide both fuel for the reactor and reaction mass for the drives.
Even at 1g the whole way, travel to even the nearest star will take many years. But it's a start.
francoflier From France, joined Oct 2001, 4233 posts, RR: 10
Reply 7, posted (5 years 8 months 3 weeks 2 days ago) and read 2502 times:
I agree with everybosy else here. Fusion is the only medium term feasible propulsion method that would provide enough energy for space travel, albeit not interstellar travel. If we manage to harness it and make spacecrafts capable of travelling with the solar system to harvest its mineral and gazeous resources, it'll be a good start. The technology can evolve from there once there is a commercial incentive.
Everything other form of space propulsion out there is still highly theoretical, and most of them require amounts of energy we can hardly comprehend, let alone create...
Though it would be cool to see some sort of giant energy capacitor which, once charged, would provide enough energy to locally distort space and time in such a way that it would bring you to another point in space instantly, provided it is at all possible to cohenrently manage that distortion.
Looks like I picked the wrong week to quit posting...