What is meant by radar?

Answer

Radar is a technology that uses radio waves to see objects at a distance. A transmitter sends out the radio waves and a receiver picks them up, and the receiver looks at how fast they came back to see how far away the stuff they bounced off is.

First answer by Bookwench. Last edit by Bookwench. Contributor trust: 89 [recommend contributor]. Question popularity: 16 [recommend question]