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Author Name: BoingBoing
This story was originally published on Boingboing.net. [1]
License: CC-BY-NC-SA 3.0.[2]
 

Watch how a phone app that blows out a candle works

2021-12-13 00:00:00

There's an app called Blower that, when turned on, displays a fan on the screen that spins and whirs as it blows on things. It's even strong enough to put out some candles. But, of course, it's not really a fan-like stream of air blasting out of your phone.

In this video, James Orgill of Action Lab shows us the physics behind how this app (and others like it) work — the gimmick, of course, involves oscillating sound waves. Could be a fun party trick — and diversion from avoiding political talk — at your next family holiday meal.
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[1] URL: https://boingboing.net/2021/12/13/watch-how-a-phone-app-that-blows-out-a-candle-works.html
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