/sci/ - Science & Math

>>6179710
>>what are we waiting for
more reliable mining and regolith handling systems.

It's impractical to have humans continually unjam them like we do on Earth.

>>4260791
Politics. War. Etc. We could have had a fucking space colony by now. If it wasn't for the fucking vietnam war, NASA could have afforded to make a space colony.

>>Where is my nuclear propulsion system?
Radioactive exhaust. Not happening until we get fusion.

Chemical and electric propulsion are more than good enough.

>>My space elevator to a starbase in orbit?
If we put all our money from military spending into space exploration we could have easily had a manhattan project for developing the long carbon nanotubes necessary to do this.

>>4088189
>>4088167
>>4088163
Well one can just use lunar or asteroidal regolith for much of the radiation shielding. One doesn't build a space colony from resources launched from Earth alone.

>>3995402
>>3995410
Correct. The Earth doesn't have ubiquitous high vacuum. The Earth has weather and other unpredictabilities.

There have been plans proposed for building replicators on earth:
http://www.molecularassembler.com/KSRM.htm

Some have proposed building self-replicating solar cell factories in the desert. Also FANUC, a Japanese robot company uses industrial robots to build industrial robots lights out.

>>2354813
Now that's an interesting result of trolling. Perhaps /sci/ should raid that site. Still though, I'm posting robots.