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MHD I: Demonstrate Magnetohydrodynamic Propulsion in a Minute

MHD I: Demonstrate Magnetohydrodynamic Propulsion in a Minute

Remember the silent caterpillar drive from the movie The Hunt for Red October? The caterpillar drive was a fictional magnetohydrodynamic propulsion system. Magnetohydrodynamic (MHD) propulsion is a means of using electrical current, instead of a noisy propeller, to push a ship through the water. Surprisingly enough, a working example of this futuristic drive system is quite easy to build. Assuming that you've got the materials handy, you can build one in about a minute. This is a great student project or a good demonstration.

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