Indiegogo

Bike wheel lights go battery-less

​You've seen those little LEDs that can be fastened to a bicycle's spokes, that create a ring of light when the wheel is spinning. While they do make the bike more visible at night, they're one more thing that needs batteries. Arara wheel lights, however, are powered by magnets.

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AquaJet H2 gives divers wings

​We've probably all seen footage of scuba divers hitching rides on the backs of manta rays. Well, the AquaJet H2 brings that to mind, although it's actually modelled after airplanes. It's a winged diver propulsion vehicle, and it's currently the subject of a crowdfunding campaign.

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