Jörg & Cheyenne are challenged to build a machine that can skim a stone across a lake. Jörg designs a slinger that throws like an arm but isn't strong enough. Will Jörg's second design be powerful enough to compete with a stone skimming champion?
Backyard Ballistics is a scientific construction series where Jörg Sprave and Cheyenne Ruether take on ambitious fan set challenges with surprising results, gnarly carnage and spectacular finales!
