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How Were Microwaves, The Saviours Of Easy Warm Food Discovered?

How Were Microwaves, The Saviours Of Easy Warm Food Discovered?


Microwaves are kitchen appliances used for heating food. Microwave ovens heat foods fast and are much different from other types of heating.

In this blog, we will know how Microwaves were discovered?

1. In 1946, Dr. Percy Spencer noticed something unusual. He was a self-taught engineer working with the Raytheon Corporation, testing a new vacuum tube, magnetron. He felt that the candy bar inside his pocket had melted.

Microwaves history

via google

2. This fascinated Dr. Spencer. He attempted another experiment. This time he put some popcorn kernels near the tube and standing a little farther away, saw with an inventive sparkle in his eye, the popcorn sputtered, cracked, and popped all over his lab.

corn cup

via google

3. Between 1937 and 1940, British Scientist, Sir John Turton Randall, together with his team, developed a multi-cavity magnetron. It produced electromagnetic waves. These waves were small enough of wavelength (microwaves) and the development of radar.

magnet machine

via google

4. The magnetron was given to the US Government in September 1940. It was in exchange for their financial and industrial help during the Second World War.

Dr Percy Spencer

via google

5. The first commercially available microwave oven was developed in 1947. It was made by Raytheon and called Radarange.

Radarange, Microwaves history

via google

6. By 1986, around 25% of families in the United States had a microwave oven. More than 90% of American households owned one microwave by 1997.

kitchen appliance oven

via google

7. It’s a common misconception that microwaves cook food inside out.

8. Metal objects work inside the microwave-oven as an antenna and could cause an electric arc, even fire! (but only if it has sharp edges).

coffee mug

via google

9. Microwaves work similarly to Faraday’s cage, preventing it from leaking by a metal box in which the food is placed.

Microwaves, heating breakfast

via google

Although we have revealed to you much about having fun with microwaves, we don’t recommend you to do any fun with it at home!

Blog Edited By Ritika Gupta

For more “Home” related blogs click here.

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