Breath powered USB charger
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Why plug your USB devices into your computer to charge them when you can save that electricity and use your own hot air? Just follow the instructions at Instructables and you too can strap a motor to your chest which should get you some very interesting looks at security checkpoints. As the inventor says, building this requires a wide range of maker skills, so simply being able to breathe may not be enough of a qualification. [GT]
Breath powered USB charger [via OhGizmo]
