<img src="http://www.crunchgear.com/wp-content/uploads/2009/02/kincaid-testing.jpg">It's fairly well known that granite contains trace amounts of radioactivity. Most are harmless but there are situati
A pair of skis made from stone? Sounds good, especially considering I don’t even know what “normal” skis are made out of (winter and I don’t get along too well). The idea behin