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Created page with "== Introduction == A '''microwave oven''' is a kitchen appliance that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. This process induces polar molecules in the food to rotate and produce thermal energy in a process known as dielectric heating. Microwave ovens are widely used for reheating previously cooked foods and cooking a variety of foods. They are also useful for rapid heating of otherwise slowly prepared cooking..."