“ The earth's way of fertilizing the oceans is with dirt. Where the prevailing winds blow soil into the oceans is where the large fisheries are:... (read full comment) ” 

Posted on April 13, 2010 at 11:33 AM EDT

+ 1 more comment posted in this discussion

“ Not quite so easy Good to see the development of these crystals. Iron Pyrite is fairly stable and should work well. On the other hand, Copper... (read full comment) ” 

Posted on October 30, 2009 at 3:45 AM EDT

“ Side view mirrors cause air drag. Removing them will produce better gas mileage. Physics 101 (read full comment) ” 

Posted on October 19, 2009 at 6:51 AM EDT