Famous Inventions

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1. Who created the World Wide Web while working at CERN?

   • Vint Cerf
   • Douglas Engelbart
   • Tim Berners-Lee
   • Steve Wozniak

2. Alexander Graham Bell received an 1876 US patent for which device?

   • Telephone
   • Phonograph
   • Radio
   • Telegraph

3. The Wright brothers’ 1903 Flyer is remembered for achieving what?

   • The first jet-powered flight
   • The first transatlantic flight
   • The first helicopter flight
   • Sustained, controlled powered flight

4. Johannes Gutenberg’s press transformed European bookmaking by using which technology?

   • Copperplate engraving
   • Reusable movable metal type
   • Lithographic stones
   • Photographic plates

5. Which inventor developed a commercially practical incandescent lighting system in the late 1870s?

   • Thomas Edison
   • Nikola Tesla
   • Michael Faraday
   • James Watt

6. What did László Bíró improve by using quick-drying ink and a rolling ball tip?

   • Fountain pen
   • Mechanical pencil
   • Ballpoint pen
   • Typewriter ribbon

7. Rudolf Diesel designed his engine to ignite fuel primarily through what?

   • An electric spark plug
   • An open flame
   • A heated catalytic wire
   • Heat from highly compressed air

8. Elisha Otis demonstrated a safety device intended to prevent what?

   • Steam boilers from exploding
   • Elevator platforms from falling
   • Railway brakes from locking
   • Factory belts from slipping

9. Thomas Newcomen’s early-18th-century atmospheric engine was first used mainly for which task?

   • Driving textile looms
   • Powering ships
   • Pumping water from mines
   • Generating electricity

10. In John Logie Baird’s early television demonstrations, images were scanned using which kind of system?

    • A mechanical rotating-disc system
    • A cathode-ray camera tube
    • A digital image sensor
    • A photographic film projector