TheBackyardScientist | Bart Simpson Megaphone Challenge! @TheBackyardScientist | Uploaded April 2017 | Updated October 2024, 1 week ago.
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Ive always wondered what would happen if you lined up 10 megaphones in a row and yell into them, today I put that idea to the test! That literal feedback loop was crazy loud!

Crash Zone - youtube.com/watch?v=_J-uKNb6TaI
kuam news - youtube.com/watch?v=EAqUelpwEl8

A great resource on measuring sound & power - gcaudio.com/tips-tricks/the-relationship-of-voltage-loudness-power-and-decibels

High speed camera - Chronos 1.4