| http://www.w3.org/ns/prov#value | - The fourth-generation local business leader is one of 12 great inventors"detailed in Edison's Concrete Piano,which explores some lesser known inventions of successful inventors, including Edison's piano made of concrete, da Vinci's walk-on-water shoes, and more recently, Davison's popcorn volcano and "screaming bug zapper.In the fun and informative read, science educator Judy Wearing demonst
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