“ Unlike combustion engines, the oxygen absorbed by a zinc-air battery during discharge is released during charge. This is true whether the zinc-air... (read full comment) ”
Posted on January 6, 2012 at 4:10 AM EST
“ Hey, hydrogen is the most abundant element in the universe. All we have to do is build a pipeline to the sun! (read full comment) ”
Posted on August 22, 2011 at 4:22 PM EDT
“ Acres Land use isn't the issue with algae bioreactors. The most difficult barrier to overcome is capital cost. Comparing acres of cropland to... (read full comment) ”
Posted on July 20, 2009 at 6:59 PM EDT
“ But algae's solar conversion efficiency isn't higher than 15%. In fact, the theoretical maximum efficiency of photosynthesis is 11%. Typical... (read full comment) ”
Posted on December 15, 2008 at 2:59 PM EST
“ California electricity rates "Today, Romm writes, a Californian has an electric bill no larger than the average American's..." Wrong. Not even... (read full comment) ”
Posted on June 4, 2007 at 8:15 PM EDT
“ "An Arab businessman" That would be Sheikh Ahmed Zaki Yamani, Saudi oil minister from 1962 to 1986. ... (read full comment) ”
Posted on January 29, 2007 at 5:00 PM EST
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