Railgun
in theory, the energy consumption for each gun would be enough to illuminate half of Chicago.
While minor successes happened afterward, the most notable one was late into the first decade of
2000s, when the U.S. Navy tested a railgun that accelerates a 3.2 kg (7 pound) projectile
to hypersonic velocities of approximately 2.4 kilometres per second (8,600 km/h), about Mach 7.
They gave the project the motto "Velocitas Eradico", Latin for "I, speed, eradicate"-- or simply,
"Speed Kills".
1.2 Theory behind it
A railgun consists of two parallel metal rails connected to an electrical power supply. When a
conductive projectile is inserted between the rails connected to the power supply it completes the
circuit. Electrons flow from the negative terminal of the power supply up the negative rail, across
the projectile, and down the positive rail, back to the power supply.
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