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Created as the brain child of Edgar Lincoln and his wife Norma Barret-Lincoln with the help of friends, some of whom are still involved today, RadCon is a not-for-profit organization that promotes education in Science Fiction and Fantasy.
Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...
As a demonstration of the principles involved in ray tracing, consider how one would find the intersection between a ray and a sphere. This is merely the math behind the line–sphere intersection and the subsequent determination of the colour of the pixel being calculated.
The Finder is the default file manager and graphical user interface shell used on all Macintosh operating systems. Described in its "About" window as "The Macintosh Desktop Experience", it is responsible for the launching of other applications, and for the overall user management of files, disks, and network volumes.
Optional. Launched. February 6, 1996; 28 years ago. ( 1996-02-06) Current status. Active. MapQuest (stylized as mapquest) is an American free online web mapping service. It was launched in 1996 as the first commercial web mapping service. [1] MapQuest vies for market share with competitors such as Google Maps and Here.
Install SafeCentral from a Mac. Discover how to download and install SafeCentral on your PC or Mac.
Plane Finder is a United Kingdom -based real-time flight tracking service launched in 2009, [1] that is able to show flight data globally. The data available includes flight numbers, how fast an aircraft is moving, its elevation and destination of travel. [2] Several variants of the service are available as mobile apps including free, premium ...
A flight recorder was invented and patented in the United States by Professor James J. "Crash" Ryan, a professor of mechanical engineering at the University of Minnesota from 1931 to 1963. Ryan's "Flight Recorder" patent was filed in August 1953 and approved on November 8, 1960, as US Patent 2,959,459. [14]