Скачать или смотреть Secretly Turning People's Windows Into Giant Speakers With Amplified Vibrations

In this video I show you how a vibration speaker works to amplify sound. And then I put it in my vacuum chamber to finalize the idea that sound cannot propagate in a vacuum.

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*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on The Action Lab channel.