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radar
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Learn how a radar works
principle of radar operation pulse waveform transmitted by radar parts of a radar system radar antennas ASR-9 airport surveillance radar AN/APG-66 radar in an F-16 fighter aircraft refraction of HF radar radiation by the ionosphere hook echo Waveguide
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Air traffic controllers aboard the USS Essex monitoring radar screens, 2003.
radar summary
Quizzes
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Figure Out the Acronyms ASAP Vocabulary Quiz
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Young men throw balloons and glitter from above the mosque at the celebration Eid Al-Fitr after prayers playing with balloons outside of Al-seddeeq mosque, Al-Mansourah, Egypt. 17 July 2015.
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earthquake. Heavily damaged school in the town of Yingxiu after a major earthquake struck China's Sichuan Province on May 12, 2008.
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Photos and Videos

principle of radar operation
pulse waveform transmitted by radar
parts of a radar system
radar antennas
ASR-9 airport surveillance radar
AN/APG-66 radar in an F-16 fighter aircraft
refraction of HF radar radiation by the ionosphere
hook echo
Waveguide
Air traffic controllers aboard the USS Essex monitoring radar screens, 2003.
Learn how a radar works
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Key People

Luis Alvarez
Luis Alvarez
American physicist
William Webster Hansen
American physicist
Watson-Watt, Sir Robert
Sir Robert Alexander Watson-Watt
British physicist
Frederick Emmons Terman
American engineer
Albert Hoyt Taylor
American physicist and radio engineer
Sir Arthur Percy Morris Fleming
British engineer
Sir Frederic Williams
British engineer
Robert H. Dicke
American physicist
Page, Robert Morris
Robert Morris Page
American physicist
Robert Hanbury Brown
British astronomer
James Brown Fisk
American physicist

Related Quizzes and Features

Quiz
Yellow transportation sign with ASAP (as soon as possible) on violet color sky background. (acronyms)
Figure Out the Acronyms ASAP Vocabulary Quiz
Armed Forces Radio Services broadcaster Jack Brown interviews Humphrey Bogart and Lauren Bacall for broadcast to troops overseas during World War II.
Communications Firsts Quiz