“ How about using the wind generated power to heat up these pellets? http://www.technologyreview.com/energy/39856/?mod=chfeatured (read full comment) ” 

Posted on April 3, 2012 at 4:58 PM EDT

“ Rare Earths Would it be possible to use mass spectrographs to separate the rare earths, eliminating the environmental damage of chemical separation? (read full comment) ” 

Posted on November 4, 2010 at 7:33 AM EDT

“ Lens Distortion Could the distortion in the field be a result of the proper motion of the solar system through the galactic medium? (read full comment) ” 

Posted on May 23, 2009 at 6:17 PM EDT

“ 100 km is enough to get it started! It would significantly cut down on the fuel load needed if a rocket engine then took over. (read full comment) ” 

Posted on February 16, 2008 at 12:22 PM EST

“ Solar Cells Will the process be able to create solar cells? (read full comment) ” 

Posted on November 26, 2007 at 6:44 PM EST

“ Not only human poop... feedlots produce lots of cow poop. Chicken and turky farms are polluting rivers and streams with undigested runoff. There... (read full comment) ” 

Posted on June 18, 2007 at 10:41 PM EDT

“ Could it also account for the suppression of dreaming due to pot smoking? (read full comment) ” 

Posted on June 1, 2007 at 3:02 PM EDT

“ Interesting... Combine this with the algorithms to produce holograms on lcd displays and you get 3D TV! (read full comment) ” 

Posted on May 25, 2007 at 4:23 PM EDT

“ Why does it have to be cars? If the weight and efficiency are not suitable to a vehicular application, why could the system not be used to... (read full comment) ” 

Posted on May 25, 2007 at 4:10 PM EDT

“ Several years ago I saw on PBS (I think on NOVA) a story about households in India using chicken manure in individual digesters to make methane,... (read full comment) ” 

Posted on May 4, 2007 at 2:49 PM EDT