Robert N. Hall, 96, Whose Inventions Are Everywhere, Is Dead He came up with a semiconductor laser used in supermarket scanners, printers and remote controls. His magnetron was adapted for the microwave oven. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:END TIME: Earthquake Armageddon on November 19 triggered by Nibiru / Planet XQ&A: The Stripes in a Cat’s WhiskersTrump Plans to Shrink Two National Monuments in UtahRobot who wants to ‘DESTROY humans’ has been given Saudi Arabia citizenshipFuture Tense: Amazon Key Is a Lot Less Scary Than My Post-1-Click RemorseTrilobites: Astronomers Race to Study a Mystery Object From Outside Our Solar System