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microwave
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Are microwaves actually safe?
types of electromagnetic radiation
How do microwave ovens work?
How microwaves cook food
Understand how the electromagnetic spectrum helps study the celestial bodies
Read Next
Using microwave oven
How Do Microwaves Work?
microwave, kitchen
Why Do Some Foods Explode in the Microwave?
Discover
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What Is an Aftershock?
Aphrodite. Greek mythology. Sculpture. Aphrodite is the Greek goddess of love and beauty.
12 Greek Gods and Goddesses
solar eclipse, sun, moon, astronomy, space
How Do You Tell the Difference Between Total, Annular, Solar, and Lunar Eclipses?
Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson
Vietnam War Timeline
Still from the film Deliverance, 1919. The story of Helen Keller and Anne Sullivan. View shows Keller in the cockpit/front seat of an airplane.
How Did Helen Keller Fly a Plane?
Queen Elizabeth II addresses at opening of Parliament. (Date unknown on photo, but may be 1958, the first time the opening of Parliament was filmed.)
All 119 References in “We Didn’t Start the Fire,” Explained
Artist interpretation of a Space meteoroid impact. Meteor impact. Asteroid, End of the world, danger, destruction, dinosaur extinct, Judgement Day, Planet Earth, Doomsday Predictions, comet
10 Failed Doomsday Predictions
physics
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Article History
Category: Science & Tech
Key People:
William Webster Hansen
Ernst Weber
Robert H. Dicke
Related Topics:
radar
cosmic microwave background
maser
microwave oven
klystron
Are microwaves actually safe?
Are microwaves actually safe?
Using chemistry to understand the safety of microwave ovens.
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microwave, electromagnetic radiation having a frequency within the range of 1 gigahertz to 1 terahertz (109–1012 cycles per second) and a wavelength between 1 mm and 1 m.

This article was most recently revised and updated by Michele Metych.