“ One would suspect it's a cost/benefit problem. Ultra high efficiency solar cells are very expensive, plastic lens are cheap. Ultimately the... (read full comment) ” 

Posted on April 29, 2010 at 9:41 PM EDT

“ graphene this mechanism has to involve the breaking of carbon-hydrogen bonds, so why not just deuterate graphene and see how that affects failure.... (read full comment) ” 

Posted on April 14, 2010 at 10:20 AM EDT

“ Socialism is grossly inefficient. Capitalism, a market system based on the voluntary exchange of goods and services. Note the word voluntary. ... (read full comment) ” 

Posted on June 2, 2008 at 10:57 AM EDT