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Actually a Physics Blog

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Magnetic Levitation Trains

Magnetic Levitation (Maglev) trains are one of the ways electromagnets are used every day. Maglev trains carry passengers at speeds of 310 mph. The trains are able to reach such high speeds without falling apart partially because of their sturdy design but also because of their propulsion system. The trains are held up by magnetic forces when they approach higher speeds.the lack of physical contact with rails reduces friction to only that of air resistance, allowing the train to be more

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Rail Guns

A military application of electromagnetic force is the rail gun. A rail gun is like a regular gun in the sense that it fires a projectile out of a barrel, but it has some major differences. A regular gunpowder gun uses a projectile with a firing pin, which is hit by the gun, pressurizing gunpowder, resulting in an explosion which propels the projectile forward. This is a bit inefficient however, because a lot of recoil occurs in the gun because of conservation of momentum, and a lot of exc

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Light as a Particle and a Wave

Light is subject to a quantum theory called wave-particle duality. This theory proposes that matter exhibits both properties of a particle and properties of a wave. The experiment that shows light's wave-like properties is the double slit experiment. when light was shone through two slits close together, and a screen was placed behind the slits, the impact pattern didn't look the way one would expect a particle impact pattern to look like. After going though the slits, the light diffracted, c

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