Radar: A Silent Eye In The Sky :: essays research papers fc

Radar A Silent Eye in the SkyTodays society relies heavily on an invention taken for grant microwave radiocommunication detection and ranging.Just ab come out everybody use of goods and servicess radar, whether they realize it or not. Tens ofthousands of lives rely on the clearcutness and speed of radar to guide their planethrough the skies unscathed. Others just use it when they turn on the morningnews to check the weather forecast. small-arm radar seems to be an important part of our everyday lives, it hasnot been slightly for long. It was not put into effect until 1935, near World WarII. The British and the Americans both worked on radar, but they did not worktogether to sort a single system. They each developed their own systems at the equal time. In 1935, the first radar systems are installed in Great Britain,called the be measure Warning Detection system. In 1940, Great Britain and theUnited States install radar aboard fighter planes, giving them an advantage inplane- to-plane combat as well as air-to-ground attacks.Radar kit and boodle on a relatively simple theory. Its one that everybody hasexperienced in their lifetime. Radar works much interchangeable an skirt. In an echo, asound is sent out in all directions. When the sound waves find an object, suchas a cliff face, they will bounce back to the source of the echo. If you countthe soma of seconds from when the sound was made to when the sound was heard,you can figure out the withdrawnness the sound had to travel. The formula is(S/2) X 1100 = D (Half of the total time times 1100 feetper second equals the distance from the origin to the reflection point)Of course, radar is a much more complicated system than just somebodyshouting and audition for the echo. In fact, modern radar listens not only foran echo, but where the echo comes from, what direction the object is moving, itsspeed, and its distance. There are two types of modern radar continuous waveradar, and pulsate radar.Pulse radar works like an echo. The transmitter sends out short burstsof radio waves. It then shuts off, and the receiver listens for the echoes.Echoes from pulse radar can tell the distance and direction of the objectcreating the echo. This is the close common form of radar, and it is the onethat is used the most in airports just about the world today.Continuous wave radar works on a different theory, the Doppler Theory.The Doppler Theory works on the principle that when a radio wave of a set