Batarangs and Grapnels : The Science Behind Batman's Utility Belt, Paperback by Biskup, Agnieszka; Kane, Bob (CRT), ISBN 1476552118, ISBN-13 9781476552118, Brand New, Free shipping in the US Looks at several of the tools and weapons from Batman's utility belt and the science behind similar real-world technologies, from boomerangs and bolos to rebreathers for underwater diving.
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