Using Waste Heat to Charge Your Cell Phone (Video)
image via video screengrab
Instructables has an awesome tutorial on generating energy from waste heat. If you've ever been curious about what goes in to being able to charge a gadget like a cell phone with waste heat, you've got some easy-access answers.
This is just the intro. Loads more is available from Instructables.
We don't often stop to sit back and think about the things we use that waste energy, and how to capture that and keep using it. If we had a leaky faucet, we'd take the time to fix it or use the water...why not the same with energy sources like heat? We love the detail that has gone into this Instructable to help people hack into that energy source.
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