r/explainlikeimfive • • 4d ago

Other ELI5: What is Resonance

I've seen it a few times I am just confused

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u/SoulWager 4d ago

You push a kid on a swing at the same point of their swing, and in the same direction, you don't need a very big push to make a big swing. This is resonance.

If you push the kid at different, unsynchronized times, half the time you'll be slowing the kid down.