Posted: November 20, 2012 at 6:21 am / by David Leeper
David Leeper is a retired engineer living in Scottsdale, AZ, with his wife of 44 years. He is currently a volunteer science teacher at AzScienceLab.com. In his 40-year career he held positions from lab technician to technical vice president at Bell Labs, Motorola, and Intel. He holds 16 patents in telecom technology and a PhD in electrical engineering from the University of Pennsylvania. During his career, he wrote mainly for technical journals including Scientific American. He began writing for WesternFreePress.com in 2011.
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