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The first microwave ever built was 6 feet tall (size of a refrigerator) and weighed nearly 750 pounds
The first microwave also cost $5,000
These microwave ovens heat up food by having molecules vibrate inside the food, making the food turn hot
These microwaves don't make people sick, because once the food absorbs the waves, those waves turn into heat
The microwave wasn't invented for food purposes, it was an accident that changed more then just food technology
Microwaves are short radio waves that travel in an invisible circular motion in the air.
Microwaves are faster then television waves, but are much shorter then infrared
rays
These waves can pass through glass, paper, and plastics
Microwaves can be used in many ways. Here are some of the ways:
· Detecting speeding cars and motorcycles
· Sending telephone messages
· TV broadcasting
· Curing and drying plywood
· Treating muscle soreness
· Curing resins and rubber
· Raising bread and doughnuts
· Cooking potato chips.