This early radar device was used during World War II on the beach in Normandy. Photograph taken on June 22, 1944.
Click on image for full size
Image courtesy of the public domain
The History of Radar
People understood the concept of radar long before scientists first built a radar system. In the late 1930's all of the countries involved in World War II rushed to create better radar systems to use in the war.
Great Britain was one of the leading developers of radar in the years leading up to World War II. The research they conducted led to an early warning radar system called "Chain Home". They built radar stations around the British Isles to provide warning of an aerial invasion. This was one of the advantages which helped the outnumbered Royal Air Force defeat the German Luftwaffe during the Battle of Britain.
While radar development was encouraged by wartime efforts, people were also interested in using radar as an anti-collision system. After the Titanic ran into an iceberg and sank during bad weather in 1912, people were interested in ways to avoid this happening again.
Out of these all of these efforts, weather radar was developed.
You might also be interested in:
What types of instructional experiences help K-8 students learn science with understanding? What do science educators teachers, teacher leaders, science specialists, professional development staff, curriculum designers, school administrators need to know to create and support such experiences?
...moreThe Doppler effect was named after Christian Doppler, who first came up with the idea in 1842. He learned that sound waves would have a higher frequency if the source was moving toward the observer and
...moreSound travels in waves. You hear sound because waves hit your ear. Sound waves are similar to ocean waves. They both have a certain frequency. The frequency is measured in hertz, which is one cycle per
...moreStorm chasers are different than storm spotters. Chasers travel around Tornado Alley looking for severe storms and tornadoes. This area in the Great Plains is the best for chasing because of the frequency
...moreA tornado is the most intense force in nature. That doesn't mean it's the most powerful. In fact, a thunderstorm can be 40,000 times more powerful than a tornado. Then why aren't thunderstorms as dangerous
...moreIt's hard to forecast tornadoes. They don't last very long and are also very complicated. Scientists don't really know how they form, but they do where they tend to form. Using what they know about the
...moreHas someone ever told you to open your windows during a tornado? Or has someone ever told you that you don't have to worry about tornadoes because the place where you live is protected? These are two of
...moreTornadoes are very dangerous so it's important to know when they may form so you can take shelter. Forecastors at the National Weather Service are always looking for possible storms. Even though nobody
...more