Energy, Heat & MotionElectromagnetism

Measure Light Speed With Chocolate

Your microwave can measure the speed of light

A chocolate bar, a ruler and a kitchen appliance. Could that really be enough to measure the fastest thing in the universe?

You'll find out

  • Why your leftovers heat unevenly
  • What melted spots are secretly marking
  • What the number on the oven reveals

Why it matters

Radio, Wi-Fi, GPS and X-rays all ride the same kind of wave. Measuring one in a kitchen makes them all real.

About 3 min6 interactive slides · 5 questionsLesson 88 · Zone 10

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