Geek Fact for April 20th

In 1940, the first electron microscope was demonstrated.

Vladimir Zworykin demonstrated the electron microscope at RCA in Philadelphia, PA. Zworykin is better known as a co-inventor of television. He came to the US in 1919 and worked for Westinghouse before moving to RCA.

Learn more at

Photo: Bettmann/Corbis

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Judy Novotny

Judy is a computer veteran with 30 years of experience. She has owned everything from a TRS-80, Apple IIe and various Windows-based PCs. She is currently living in her Apple ecosystem at home consisting of an iPhone, iPad, iMac, MacBook, Apple TV, iPod nano and two Time Capsules. She is a fan of all things mobile since she got her first Palm Pilot in 1999. Check out her iPad app, Number Wizard, in the App Store. Follow her on Twitter @junovotech or at