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      a device that sends out radio waves and picks them up again after the waves
      strike another object and bounce back


Radar is used to help predict weather and measure waves of the ocean.

Police officers can tell how fast a car is going by using a radar device.


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Birds and Radar


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Artwork of an airplane with radar coming out the bottom in the shape of a spotlight
This airplane uses radar to find changes in Earth's land.
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Page Last Updated: October 9th, 2014
Page Editor: Sandra May