Have we broken Olympic records for the last time?

With the 2012 London Games fast approaching, sports fans and pundits alike are wondering how many records athletes will break this year. And it's hard to blame them — after all, world records were broken in 33 separate events four years ago in Beijing. So why are the experts predicting far fewer records this time… » 7/16/12 11:01am 7/16/12 11:01am

Knights in shining armor were the worst idea in military history

To determine how much energy knights in the Middle Ages burnt merely strolling around, British researchers recruited volunteers to dress up in mock-ups of real knightly armor and — in a hilarious twist — gallivant on treadmills. Sure enough, the study found that shielding the entire body was a heavy proposition.… » 7/20/11 12:00pm 7/20/11 12:00pm