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2. Weather radar - Wikipedia

   en.wikipedia.org/wiki/Weather_radar

   Weather radar, also called weather surveillance radar ( WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the ...

3. Radar - Wikipedia

   en.wikipedia.org/wiki/Radar

   Radar is a system that uses radio waves to determine the distance ( ranging ), direction ( azimuth and elevation angles ), and radial velocity of objects relative to the site. It is a radiodetermination method [1] used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain.

4. Radar detector - Wikipedia

   en.wikipedia.org/wiki/Radar_detector

   A radar detectoris an electronic device used by motoriststo detect if their speed is being monitored by policeor law enforcementusing a radar gun. Most radar detectors are used so the driver can reduce the car's speed before being ticketed for speeding. In general sense, only emitting technologies, like doppler RADAR, or LIDARcan be detected.

5. Four weather apps, four radar experiences - Engadget

   www.engadget.com/2014-02-17-four-weather-apps...

   In the video below, I tried the radar experience in four apps: The Weather Channel, Weatherbug, Yahoo Weather and My Radar Pro. The only app you'll pay for up front is My Radar Pro at US$1.99, and ...

6. Doppler radar - Wikipedia

   en.wikipedia.org/wiki/Doppler_radar

   Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...

7. Download, install, or uninstall AOL Desktop Gold - AOL Help

   help.aol.com/articles/aol-desktop-downloading...

   Call paid premium support at 1-800-358-4860 to get live expert help from AOL Customer Care. Learn how to download and install or uninstall the Desktop Gold software and if your computer meets the system requirements.