“ LEAVE WINDOWS OPEN WHEN TORNADOES APPROACH Is there really nothing else that can be done to reduce the harm caused by tornadoes? For a long time... (read full comment) ” 

Posted on May 25, 2011 at 10:15 PM EDT

“ Hybrid Electricity Properly driven, hybrids reclaim kinetic energy of moving vehicles when they are braked. There need not be any heat lost in the... (read full comment) ” 

Posted on August 17, 2010 at 7:48 PM EDT