Q. What charge card, developed in 1950, was the first to be accepted nationally in the US?
? Diner’s Club
Q. What Enrico Fermi invented?
? Nuclear reactor
Q. Which of the following was first patented by an Australian in 1889?
? Electric Drill
Q. Who among the following invented the small pox vaccine?
? Edward Jenner
Q. What George Westinghouse invented?
? Railway air brakes
Q. Who is the only U.S. President to invent and patent something?
? Abraham Lincoln
Q. What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin?
Q. What Thomas Davenport invented?
? Electric streetcar
Q. What Elisha Otis invented?
? The brake used in modern elevators
Q. Where was the yo-yo invented?