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Science Mission Directorate. "Microwaves" Mission:Science. 2010. National Aeronautics and Space Administration. Web. 17 Apr. 2013 <http://missionscience.nasa.gov/ems/06_microwaves.html>.
What are microwaves?
I believe most of us are familiar with microwave ovens. The most common use of microwaves is food preparation in a microwave oven. Microwaves can also be used for communication. On the electromagnetic spectrum, they lie between infrared waves and radio waves.