Discovered by Austrian physicist Christian Doppler (1803-1853), this condition has a great effect on low-earth orbit (LEO) satellites as they weave towards and away from the earth. See Doppler radar.

Such a common experience in our everyday lives, the Doppler Effect has proved to be a major factor in demonstrating the existence of an ever-expanding universe. Simply put, the effect occurs when ...

But what about the winds inside? Researchers upgraded radars to utilize the Doppler effect to solve this problem beginning in the late 1980s in the U.S., and in the 1990s across Canada.

When this information is combined with the anatomic information of the gray-scale or color image, it is possible to more precisely locate the area of interest. The Doppler effect is combined with ...