@physicsfun 2022-08-07 22:55:14
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Levitation Lamp: tapping the floating spherical magnet turns this LED lamp off and on in this interesting design. The magnet floats a couple centimeters from the surface of the base when plugged in, and feels springy to the touch. Within the base is a control system with adjustable electromagnet coils in a feedback loop with Hall effect sensors which allow for fine tuning of a magnetic field to precisely balance the pull of gravity. ➡️ Follow the link in my profile for info about where to get this lamp and other amazing items featured here on

@physicsfun at 2022-08-07 22:55:14

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