Media Hunt: Tesla’s Earthquake Machine

In this video the Mythbusters explain and demonstrate the concept of resonance frequency and how it might be used to make a bridge collapse. They use a device called Tesla’s earthquake machine to try to make a bridge wobble and perhaps even collapse. Although they fail at that, the vibrations from the device resonate throughout the bridge when it reaches a certain frequency. This shows that even a small machine can create a large effect in a massive object.

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