This entry details the construction of a highly unconventional projectile launcher built in high school, utilizing a hydrogen and oxygen gas propulsion system generated via electrolysis. The builder, demonstrating advanced DIY and mechanical understanding, designed the device to fire half-inch ball bearings. Despite its innovative design, significant safety concerns, particularly regarding gas detonation, prevented it from ever being fired. The project also highlights a legal loophole concerning 'destructive devices' at the time, which were defined by gunpowder combustion and casings, not gas propulsion.
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