and a duel we’re happy to put up [Berto]’s DIY trolling motor made out of an electric drill. The project is probably inspired by [Berto]’s collapsible amphibious e-scooter that used the same ...

That last one has some charming history to it—when inventors were tinkering with electric cars in the 1970s, they often turned to washing machines for a source of torquey electric motors.

[Tom Stanton] wanted to see if supercaps have any practical use on e-bikes, and built a DIY electric motor in the process. One of the problems with supercaps is the rapid voltage drop during ...

Powered by a combination of internal-combustion engines and electric motors, this is what you need ... discoveries, and DIY tips sent every weekday.