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The larger the cannon the louder the boom it makes when fired. Used outdoors, they produce a realistic muzzle flash and a loud boom!Bangsite (powdered calcium carbide), water, air and a spark mix to produce a safe (and loud) BANG. The BIG BANG CANNON was invented by a Lehigh University professor and was originally made of glass to illustrate the safe process which could generate a "BIG BANG" - without breaking the glass!


An assistant professor from the same physics department at Lehigh was the company founder and owner until 1955.

The Conestoga Company manufactures nineteen models of Big-Bang Cannon in Allentown, Pennsylvania, Lehigh County.

Taken by eminent domain in the late 1960s to construct the 4-lane spur route I-378, the plant moved to E. Miller III.] Calcium carbide was one of the first products of electric arc furnaces, made economical by Niagara Falls in 1888.

Goepp St, until its present owners moved it to Sumner Ave. After cooling, irregular chunks were packed in air-tight containers for sale and used to generate acetylene gas by slowly dropping water on them.

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