you can use your oven to calculate the speed of light. Multiply the frequency of vibration (listed on the oven’s door frame) by the wavelength you measured in your experiment, and you should get the speed of light or something pretty close to it. Here’s how it would go with the numbers I just gave: The frequency is 2.45 billion cycles per second. The wavelength is 12 centimeters (per cycle). Multiplying them together gives 29.4 billion centimeters per second. That’s pretty close to the accepted value for the speed of light, 30 billion centimeters per second.
