Microwaves are supposed to kill bacteria, but some microbes are surviving — and even thriving — inside them. Researchers ...

The cavity magnetron is a power RF oscillator ... and it lies at the heart of a domestic microwave oven. They usually need a high-voltage mains transformer and a rectifier to work, but [Hyperspace ...

The cavity magnetron uses physical cavities and a magnetic field to create microwave energy. The frequency is determined by the size and shape of the cavities. While the cavity magnetron had ...