Eli5, How does a railgun work?
In: 35
Take a piece of heavy sharp metal. Generate extremely strong magnetic fields around it aligned in the same direction. Magnetic fields accelerate the projectile. Really, really, really fast.
Upside, you don’t have to deal with the pressures generated by using burning energetic materials to push the projectile.
Downside, you need a lot of energy and materials that handle it.
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