Turn yourself into an electromagnetism maestro with one of the simplest motors known to man—the homopolar motor. It's the "simplest motor" because of its absent polarity change. The magnetic field does not change the direction or strength. It consists of only three parts; copper wire, round magnet and battery. It produces really low voltages, which means there's no real practical application for this motor, but it sure is fun to make! Try your hands at the homopolar motor—watch the video and make one!
It’s Black Friday week in the Gadget Hacks shop! Huge sales on Bluetooth speakers, phone mounts, online courses, and more. The biggest discounts are on online classes, and we’ve hand-picked our 10 favorites for you. Check them out!