Easy Level
- Who invented the light bulb?
- What did Alexander Graham Bell invent?
- Which brothers invented the first successful airplane?
- What did Johannes Gutenberg invent?
- Who is credited with discovering penicillin?
- What invention is Steve Jobs most famous for?
- Who invented the World Wide Web?
- What did Benjamin Franklin invent to protect buildings?
- Which inventor created the alternating current (AC) system?
- What did Karl Benz invent?
- Who invented the telephone's microphone?
- What did George Washington Carver invent uses for?
- Who invented dynamite?
- What did James Watt improve that powered the Industrial Revolution?
- Who invented the polio vaccine?
Medium Level
- What did Garrett Morgan invent to help traffic flow?
- Who invented the first programmable computer?
- What did Percy Spencer invent by accident in 1945?
- Who invented the first successful sewing machine?
- What medical device did Willem Einthoven invent?
- Who invented the first practical refrigerator?
- What did John Logie Baird demonstrate in 1926?
- Who invented the first commercially successful steamboat?
- What did Mary Anderson invent for cars in 1903?
- Who invented the first synthetic plastic (Bakelite)?
- What did Grace Hopper invent that revolutionized computing?
- Who invented the first digital camera?
- What did Whitcomb Judson invent in 1893?
- Who invented the first rechargeable battery?
- What did Josephine Cochrane invent to help with household chores?
Hard Level
- Who invented the first working laser?
- What did Hedy Lamarr co-invent that's used in modern WiFi?
- Who invented the first integrated circuit (microchip)?
- What medical breakthrough did Wilhelm Röntgen discover accidentally?
- Who invented the first computer algorithm?
- What did John Bardeen, Walter Brattain, and William Shockley invent?
- Who invented the first successful helicopter?
- What did Stephanie Kwolek invent that's used in bulletproof vests?
- Who invented the first artificial heart implanted in a human?
- What did Charles Goodyear invent through vulcanization?
- Who invented the first successful color photography process?
- What did Maria Beasley invent that saved thousands of lives at sea?
- Who invented the first programmable electronic computer (ENIAC)?
- What did Lewis Latimer improve that made light bulbs practical?
- Who invented the first successful water frame for spinning cotton?