Stone Skipping the Scientific Way
Quirk writes "National Geographic has a bit on the scientific analysis of stone skipping. Using a machine launching aluminum disks Lyderic Bocquet, a physics professor at the University of Lyon, and his colleagues discovered the 'magic angle' of 20 degrees as that required to maximize skipping. 'Jerdone Coleman McGhee of Wimberley, Texas, holds the current Guinness Book of World Records title for a 1992 toss that yielded an impressive 38 bounces across the Blanco River in central Texas'"
Loogie Hocking.
I was disappointed by the lack of pictures in the article, so I went hunting at one of the researchers' sites. Couldn't find the stone skipping machine, but I found a cool movie of a skipping stone. My dad and I used to do this stuff up in Michigan, it's nice to learn the physics behind it!