What Is Quantum Tunneling?

Quantum tunneling is like when a ball rolls toward a wall, but instead of stopping, it just passes through the wall. It's like magic! Imagine you're trying to get out of your room, and there’s a door that’s closed, but somehow, you just appear on the other side without touching it. That’s what quantum tunneling is: tiny particles passing through barriers without needing to go all the way around them.

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Examples

  1. A ball rolls toward a wall, but it just passes through the wall instead of bouncing back.
  2. You're trying to get out of your room, and you appear on the other side without touching the door.
  3. A person walks into a wall, but they just walk straight through it.

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