It takes a lot to melt metal — you generally need some sort of heavy-duty torch and a whole lot of time to spare. But if you’re familiar with the application of electrical energy and have a basic ...

Microwave ovens are a treasure trove of useful parts: transformers, an HV capacitor, a piezo speaker, and a high torque motor, to name just a few. In a new twist, [Rulof Maker] strips all that out and ...

The easiest route for genuine hands-on learning: take apart some old stuff. Old computers, old appliances. What's inside? What can you do with them? How about a microwave? A microwave can be used to ...

Run an alternating current through a coiled length of copper and you’ll create a levitation cylinder. Drop a bar of aluminum in and you’ve got yourself some hovering metal. But leave the metal there ...