1. Who invented the airplane?

2. Who invented the electric battery?

3. Who invented the World Wide Web browser?

4. What mechanical component did Tesla's induction motor eliminate to reduce friction and maintenance?

5. What existing device did Gutenberg adapt to create his printing press mechanism?

6. What did Charles Babbage call the part of his computer that performed calculations?

7. What was the first official message sent via Morse's telegraph?

8. What was the famous slogan for George Eastman's first Kodak camera?

9. What substance did Nobel mix with nitroglycerin to make it stable and create dynamite?

10. How did Elisha Otis demonstrate his safety elevator at the World's Fair?

11. What was the main advantage of Armstrong's FM radio over the existing AM radio?

12. What was the most significant mechanical feature of Pascal's calculator?

13. What was Lonnie Johnson's profession before he invented the Super Soaker?

14. How did Thomas Savery's engine create the suction needed to pump water?

15. What was the main limitation of Galileo's thermoscope compared to a modern thermometer?

16. What materials did Cai Lun use to create his first batches of paper?

17. Which organization was Tim Berners-Lee working for when he invented the World Wide Web?

18. Which of these was the most important new invention Gutenberg contributed to the printing process?

19. How was Mary Anderson's original windshield wiper powered?

20. What did Ada Lovelace mean when she said the machine can only do what we 'order it' to do?