RADAR was created in 1942 as an acronym (short form) for Radio Detection and Ranging. However, the word has now become common. It is no longer an acronym.

The radar antenna receives the high-frequency pulses from a transmitter, focuses them into a beam, and sends them into space. Second, it picks up reflected pulses coming from objects that have been struck by the beam.

Key facts about RADAR!

• The invention of the radar is the result of the work of many scientists.
• They include Guglielmo Marconi of Italy, Heinrich Hertz, Karl F. Braun, Christian Hülsmeyer of Germany,  and Lee De Forest of the United States.
• After that, British and American scientists worked together to perfect the radar during World War II. 
• Once upon a time, this amazing technology was very mysterious to people.
• However, today, we understand how it works.
• A radar system senses objects by using radio waves. 
• It can locate a faraway object and tell how fast it is moving and in which direction.
• It can sense objects even at night and through thick clouds too.
• This amazing technology is very useful to human beings.
• Today, it is used to detect aircraft, ships, spacecraft, and missiles.
• It is even used to predict the weather.

Check out how radar works in the following informative video from “Pebbles Kids Learning”.

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