The scientific myth that soda will dissolve your teeth

Will soda dissolve your teeth? The short answer is 'no,' and the longer answer is, 'no, of course not.' And yet there is a rumor, and has been for decades, that a nail dropped in coca cola will be dissolved in a few days — which led to the widespread idea that the soda would dissolve teeth, too. The truly weird part… » 4/20/12 3:52pm 4/20/12 3:52pm

How Should We Fund Space Exploration?

Even though NASA's budget actually increased in 2008, the government space agency faces an uncertain future as it transitions from the Space Shuttle to the Constellation Project, and it's been plagued for years by claims of inefficiency and lack of creativity. Is it time to look at a new way to pay for the exploration… » 4/03/08 11:30am 4/03/08 11:30am