Energy, Heat & MotionElectromagnetism
Why Your Microwave Door Has Holes
The holes are too small for microwaves but big enough for light
A microwave door is metal full of holes, yet you can watch your soup spin. How does it keep the cooking in?
You'll find out
- Why holes can act like a solid wall
- What makes a wave too big to fit
- Where else this hides in your day
Why it matters
The same trick explains dead phones in elevators, radio fading in tunnels, and dishes you can see through.
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