Suhash (India)
Instant charging
The idea is to charge a mobile phone using body temperature. First of all a watch which runs with body temperature without battery. The watch will consume the body temperature and it will start working. Then we can connect the watch to mobile through USB or Bluetooth and we can charge the mobile with body temperature. It means taking heat energy and converting into electrical energy, which is indeed possible.
So that we can save a lot of electricity.

Reward: Free

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