Tune into any TV weather report and you’ll hear the words “Doppler radar” as meteorologists track storms across California. But how does Doppler radar work? And how accurate is it? The concept of ...

Three new mobile Doppler radar units are joining the team at the National Severe Storms Laboratory. Their goal is to improve ...

What is Doppler Ultrasound Scan? Ultrasound is a high-frequency sound that you cannot hear but it travels through fluid and soft tissues. However, it bounces back, or echoes, when it hits a more solid ...

Radar is an electronic signal that is sent out from a device that looks like a satellite dish. This machine sends out an electronic signal that "bounces" off raindrops, hailstones or anything falling ...