Search results
Results From The WOW.Com Content Network
Radar Online is an American entertainment and gossip website that was first published as a print and online publication in September 2003 before becoming exclusively online. [ 1 ] [ 2 ] [ 3 ] As of 2008, the magazine has been owned by the publisher American Media Inc. [ 4 ] American Media's former Chief Content Officer, Dylan Howard , oversaw ...
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.
The history of radar (where radar stands for radio detection and ranging) started with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell 's seminal work on electromagnetism.
This radar uses radio waves along with horizontal, dual (horizontal and vertical), or circular polarization. The frequency selection of weather radar is a performance compromise between precipitation reflectivity and attenuation due to atmospheric water vapor.
Get breaking entertainment news and the latest celebrity stories from AOL. All the latest buzz in the world of movies and TV can be found here.
AOL latest headlines, entertainment, sports, articles for business, health and world news.
Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes. [1] SAR uses the motion of the radar antenna over a target region to provide finer spatial resolution than conventional stationary beam
You can find instant answers on our AOL Mail help page. Should you need additional assistance we have experts available around the clock at 800-730-2563.