Imagine an airplane plummeting towards the ground at a fast pace speed, its foggy outside and impossible for the pilot to regain control of the plane and he has to make an emergency stop, everyone on the plane is panicking but the pilot reassures them a safe landing, because he has a secret weapon called radar.
What is radar? Radar stands for radio detecting and ranging, it is used to find radio waves and retrieve information and also to transmit radio wave information. Heinrich Rudolf Hertz a German scientist studying electromagnetic theory of light is responsible for the development of the radar system. Along with other less well known scientist under him.
There are multiple different types of radar,
AIR SEARCH RADAR, meaning plane missiles response.
HEIGHT FINDING RADAR- when in the air, trying to find signal to land.
& FIRE CONTROL RADAR.
Primary focus war:
Radar was used a lot back in modern wars, mostly on ships for purposes like to avoid ship collision and to be able to find where the other boat and any other miscellaneous objects where and to either a. have the element of surprise or b. to avoid. Radar can also be used in the air, fighting while in flight can be even more dangerous than fighting by land or by the sea, but with the use of radar, planes can use antennas to detect other enemy airplanes, they might also have them in modern day airports to help the pilot find the landing strip while in the air, the radar will send transmitted information to the pilot that will help them prepare to land.
It’s not only used for these practices though it can also be used for many modern day 21 century objects in your home as well such as the microwave oven, the television, antennas and transmitters and the satellite radio.
Directions/ example of how a radar would work:
Magnetron generates high-frequency radio waves.
Duplexer switches magnetron through to antenna.
Antenna acts as transmitter, sending narrow beam of radio waves
Citations: Woodford, chris. "Radar." http://www.explainthatstuff.com/radar.html. explainthatstuff.com, 12 July 2011. Web. 7 Aug. 2012. Rakesh, Aman. "Ship Radar Theory." http://www.marine-knowledge.com/marine-navigation/ship-radar-theory-use-of-radar-in-ships.html. Marine-Knowledge.com, Web. 1 Jan.