Today I learned about the Doppler effect. The effect is based off of wave lengths coming from an object. Lets take a car horn as an example, when the car is coming towards you the horn is a high pitch noise. When the car is passing you the car horn is lower pitch. This is because when an object is moving the wave lengths travel closer and smaller and produce a blue shift. The wave lengths behind the object are larger and longer and produce a red shift this is the Doppler effect.
Christian Doppler was the person who invented the Doppler Effect in 1842. He was a mathematician from Salzburg, Austria. We also use the Doppler effect to predict the weather forecast. Meteorologists use microwaves as a measurement for the Doppler Effect to measure waves.
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