08 Mar '13, 3am
Human powered emergency cell phone charger
Using just a few ordinary around the house items, [The King of Random ] turned a cordless electric drill into a human powered electrical generator. If the drill is
08 Mar '13, 3am
Human powered emergency cell phone charger
Using just a few ordinary around the house items, [The King of Random ] turned a cordless electric drill into a human powered electrical generator. If the drill is run in reverse and cranked by hand, the generated energy can be transferred through the battery terminals to a connected device. So, he cut a USB charger cable in ha