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Nikola Tesla wireless electricity project

World First Camera revolver Colt 38

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In 1938, a very unique gun was created — the Colt .38 Revolver with a built-in camera. Unlike modern revolvers, this one could capture a photo at the exact moment it fired a bullet. It wasn’t made for mass use or sale. Instead, it was specially built for police and army training purposes, so officers could later review their actions and learn from them. You can think of it like today’s body cams worn by police officers — used for recording real-time activity. A truly ahead-of-its-time invention!