eli5: How do noise cancelling headphones work with the flick of a switch?
In: Technology
Imagine a tug of war, with a long stick (instead of rope) with a ribbon tied in the center to see movement. Each side can push or pull. Lets say left side is pushing, right is also pushing, making the ribbon stand still. Same with pull, if other side is countering the same force, the ribbon in the center does not move. For an observer, ribbon stands still.
So that ribbon barely moving is sound wave, by doing a counter wave(cancel wave), you stopped it.
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