An anonymous reader writes "There are over 700,000 ham radio licensees in the USA and about 2 ½ million worldwide. Today, this international community of wireless communications devotees are celebrating World Amateur Radio Day, recalling the advances Amateur Radio Service has made for modern man. Their theme for 2012 is Amateur Radio Satellites: Celebrating 50 Years in Space in remembrance of the launch of the first Amateur Radio satellites OSCAR 1 on December 12, 1961 and the launch of OSCAR 2 on June 2, 1962. Their ranks have included people like Steve Wozniak of Apple and Jack Kilby who invented the integrated circuit, Dr. Karl William Edmark who invented the heart defibrillator, Scott Durchslag, the Chief Operating Officer at Skype, and Dr. John Grunsfeld of NASA and the Hubble Space Telescope. This is the 87th anniversary of the foundation."
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