This Redditor mockingly named NSA_Listbot takes his railgun project quite seriously. He recently published a long post at Imgur regarding his railgun experiment, and he tells us in detail about this magnificent 3-D portable railgun. It is probably the first one ever produced using additive manufacturing like 3-D printing.
A railgun is a device that accelerates metallic projectiles through strong electromagnetic waves. But, doing so requires powerful capacitors and understanding of the phenomenon, or it can result in a disaster. The US Navy had been developing a railgun to fire high-speed projectiles approaching 10 Mach or even more. There are an astonishing twenty pounds of capacitors used in the making of this railgun. They can create a strong electromagnetic field to fire Aluminium rounds.
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