@physicsfun 2022-08-07 22:10:44
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Dancing Ferrofluid: a black magnetic fluid interacts with a variable strength electromagnet (like those found in speakers). A circuit supplies power to the electromagnet in proportion to the sound waves picked up by a microphone, the changing magnetic field- combined with the liquid surface tension of the colloidal ferromagnetic liquid- produces the captivating motion that keeps time with any music played. Featuring “12 String Thing”, composed and performed by my good friend T.D.Clark ➡️ Follow the link in my profile for info on where to get this device and other amazing ferrofluid displays.

@physicsfun at 2022-08-07 22:10:44

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