Maybe you can't make your own body light up like a firefly can, but you can use the motion of your body to generate light, using the STEM Lab's Hand Crank Flashlight. With this build-it-yourself kit, curious kids can explore the power of hand-cranked electricity. The flashlight body and gear box motor can be assembled in about 30 minutes, and when the crank is turned, an electromagnetic coil translates the movement into power, illuminating a glowing white LED.
For Prime Day, Amazon is offering 40% off the STEM Lab Hand Crank Flashlight kit. It comes with laser-cut wooden parts, all the hardware and tools required for assembly and full-color, step-by-step instructions.
"light" - Google News
June 23, 2021 at 03:21AM
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Prime Day deal: Convert motion into light with a DIY hand-crank flashlight kit, 40% off - Livescience.com
"light" - Google News
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