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DIY smartphone projector: Transform your flashlight with cardboard & a magnifying lens!

Unlock the full potential of your smartphone flashlight with this easy DIY projector tutorial! Watch as we turn ordinary ...
Interesting Engineering on MSN

Rain-powered generator makes 60-volt signals for smart drainage without batteries

UNIST scientists turn raindrops into electricity using carbon fiber rooftops to power smart drainage and flood warnings.

I Tried 6 Viral LED Masks — Here’s What Actually Made a Difference

A beauty editor reviews six popular LED face masks, including the TheraFace Mask Glo, Shark CryoGlow, HigherDOSE, and ...