Heat. For years it’s been a mainstay in the mechanic’s repertoire for unsticking stuck things. From rusted nuts and bolts to pieces that once slipped smoothly together, there isn’t much a torch can’t ...

Induction heaters can make conductive objects incredibly hot by generating eddy currents within the metal. They’re used in a wide variety of industrial processes, from furnaces to welders and even ...

[John] and [Matthew] built an induction-heater based furnace and used it to make tasty molten aluminum cupcakes in the kitchen. Why induction heating? Because it’s energy efficient and doesn’t make ...

When I was a kid, there were books of things for boys to make and, I kid you not, one included a mains-powered Pb-melting induction furnace complete with transformer winding hints and tips. Sadly, ...