RADAR
Transcript: ''Meteorologists use many different tools for different purposes. Most people are familiar with thermometers, barometers, and anemometers for measuring temperature, air pressure, and wind speed, respectively. Meteorologists use other tools, as well. For example, weather balloons are special balloons that have a weather pack on them that measures temperature, air pressure, wind speed, and wind direction in all the layers of the troposphere. '' http://www.gpb.org/blogs/talking-up-a-storm/2012/02/15/students-ask-how-do-meteorologists-predict-the-weather Cources ''The radio waves used by radar are produced by a piece of equipment called a magnetron. Radio waves are similar to light waves: they travel at the same speed—but their waves have much longer wavelengths and higher frequencies. The antenna doubles up as a radar receiver as well as a transmitter. Typically it transmits radio waves for a few thousandths of a second.'' By: Ben kennedy, Max Downs, Kevin Pearson, and Gabe Hindle 1. http://www.gpb.org/blogs/talking-up-a-storm/2012/02/15/students-ask-how-do-meteorologists-predict-the-weather 2. http://www.bing.com/images/search?q=anemometer&FORM=HDRSC2&adlt=strict#view=detail&id=845EECA1DFB4E68CC1C392A635B6E5839731DB48&selectedIndex=9 3. http://science.howstuffworks.com/radar.htm Radar is something that is in use all around us, although it is normally invisible. Air traffic control uses radar to track planes both on the ground and in the air, and also to guide planes in for smooth landings. Police use radar to detect the speed of passing motorists. NASA uses radar to map the Earth and other planets, to track satellites and space debris and to help with things like docking and maneuvering. The military uses it to detect the enemy and to guide weapons. How does radar work What is Radar? RADAR How meteorologists use radar to predict weather
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