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2. 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 ...

3. History of synthetic-aperture radar - Wikipedia

   en.wikipedia.org/wiki/History_of_synthetic...

   Although creating that radar was a more straightforward task based on already-known techniques, that work did demand the achievement of signal linearity and frequency stability that were at the extreme state of the art. An adequate instrument was designed and built by the Radar Laboratory and was installed in a C-46 (Curtiss Commando) aircraft ...

4. NEXRAD - Wikipedia

   en.wikipedia.org/wiki/NEXRAD

   NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...

5. How does Doppler radar work? Is it accurate? Here’s what to ...

   www.aol.com/news/does-doppler-radar-accurate...

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6. 2020 United States Senate election in Michigan - Wikipedia

   en.wikipedia.org/wiki/2020_United_States_Senate...

   Grand Rapids. Lansing. v. t. e. The 2020 United States Senate election in Michigan was held on November 3, 2020, to elect a member of the United States Senate to represent Michigan. It was held concurrently with the 2020 U.S. presidential election, as well as other elections to the United States Senate, elections to the United States House of ...

7. The unexpected, under-the-radar Senate race in Michigan that ...

   www.aol.com/news/unexpected-under-radar-senate...

   Elissa Slotkin had less than half an hour to reckon with a retirement announcement that would reshape Michigan’s political landscape. The state's senior senator and the third-ranking Democrat in ...