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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
For Students
Air traffic controllers aboard the USS Essex monitoring radar screens, 2003.
radar summary
Quizzes
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
Discover
Happy, smiling, flying pig
7 Everyday English Idioms and Where They Come From
US Marines firing at Fallujah, Iraq, during the Second Battle of Fallujah in November 2004. Operation Iraqi Freedom, Iraq War.
Timeline of the 2000s
The field takes the turn one after the restart during the 103rd Indianapolis 500 at Indianapolis Motor Speedway on May 26, 2019 in Indianapolis, Indiana. (auto racing, Indy 500)
Why Is the Indy 500 Held on Memorial Day Weekend?
A Factory Interior, watercolor, pen and gray ink, graphite, and white goache on wove paper by unknown artist, c. 1871-91; in the Yale Center for British Art. Industrial Revolution England
Inventors and Inventions of the Industrial Revolution
Black widow spider
9 of the World’s Deadliest Spiders
An ancient egyptian hieroglyphic painted carving showing the falcon headed god Horus seated on a throne and holding a golden fly whisk. Before him are the Pharoah Seti and the goddess Isis. Interior wall of the temple to Osiris at Abydos, Egypt.
11 Egyptian Gods and Goddesses
Figure 13: A Maxim machine gun, belt-fed and water-cooled, operated by German infantrymen, World War I.
7 Deadliest Weapons in History

radar: Related Content

News •

Carrots, death rays and passing ships. This is the origin story of the word radar • May 14, 2025, 10:26 AM ET (NPR)
Contactless patient monitoring: ECG using radar • May 5, 2025, 10:51 AM ET (Medical Xpress)
Al-based imaging, research centre opened at medical college hospital • May 4, 2025, 11:41 AM ET (The Hindu)

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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Related Topics and References

Topics
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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
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
Yellow transportation sign with ASAP (as soon as possible) on violet color sky background. (acronyms)
Figure Out the Acronyms ASAP Vocabulary Quiz