Gravity is an inescapable force. It's why Earth has its atmosphere and orbits the sun. It can bring us to our knees. And it makes the race known as the soap box derby possible. This gravity-powered ...
Add Yahoo as a preferred source to see more of our stories on Google. Ken Cline, a 1967 Soap Box Derby champion, is framed by a 1941 derby car that will be on display during this year’s Soap Box Derby ...
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