“ How about a few facts? 'Plastic tubing' gee that's helpful! What kind of plastic, how big are the pores, is it readily available in large... (read full comment) ” 

Posted on May 12, 2008 at 2:10 PM EDT

“ Blood Pump Article would be better with more info about the pump, how about a quick diagram? (read full comment) ” 

Posted on May 8, 2008 at 12:31 PM EDT

“ Space Launch If pointed upwards how high would the shell go? Wonder if you could use multiple firings to boost material into orbit and then... (read full comment) ” 

Posted on February 6, 2008 at 10:37 AM EST

“ Crash Unworthy Article fails to mention that car is very very light weight. Go strip 75% of the weight out your current car and you'll improve... (read full comment) ” 

Posted on January 16, 2008 at 4:57 PM EST