The popular experiment has been revived by an MIT PhD student. Here's how to give it a try.
is based on the fact that the speed of light is equal to the wavelength multiplied by the frequency of an electromagnetic wave .
All you have to do to get started is remove the turntable inside the microwave, insert the chocolate, then heat it up for about 20 seconds. Removing the turntable means that the microwave's standing wave will heat up and melt certain spots of the chocolate at half of the wavelength. If you remove the turntable, the standing wave will heat up certain spots of the chocolate, at half the wavelength. If you measure the distance, double to get the wavelength, and get the frequency from the microwave, you can calculate the speed of light
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