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How to Light a flashlight up with a Tesla CD turbine

Hand adjusting a mechanical device with connectors and dials in a workshop setting.

MrfixitRick demonstrates the Shake Flashlight Shaker, as it generates electric power out of faucet water pressure. A Tesla CD Turbine is used to convert the kinetic energy of water into rotation. Then, a connecting rod and magnets charges the built-in battery of the shake flashlight.

A second shake flashlight is shown charging by wireless magnetic attraction to the first one.

The CD Turbine is a little home-made Tesla turbine that thinks it can do anything.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.

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