“ Was the Shuttle a Mistake? Well, yes and no. The no part is that it was a failure as a cheap and efficient way to get to LEO. A success in that a... (read full comment) ” 

Posted on July 6, 2011 at 2:29 AM EDT

“ http://en.wikipedia.org/wiki/space_elevator#cable_material (read full comment) ” 

Posted on June 4, 2011 at 5:32 PM EDT

“ Re: GE Announces Jet Engine-Inspired Power Plant Ummm... I think that the fuel is natural gas, not jet fuel. (read full comment) ” 

Posted on May 25, 2011 at 3:22 PM EDT

“ HAARP?! Bullshit. (read full comment) ” 

Posted on May 19, 2011 at 11:25 AM EDT