Physics Uncovered on Instagram: "What you’re watching is induction heating — a process that uses magnetism instead of an open flame to heat metal. A coil carrying an alternating current creates a rapidly changing magnetic field, which induces tiny swirling eddy currents inside the metal. Those currents generate heat due to the metal’s resistance — so it literally heats itself from within. This method is incredibly efficient and precise, often used in forging, hardening, and welding — all powered