1. What was the first major book printed using Gutenberg's movable type?

2. What key component did James Watt add to the steam engine to make it efficient enough for widespread industrial use?

3. What component, originally used in WWII radar systems, is the heart of a microwave oven?

4. Who was the British engineer who successfully tested the first turbojet engine in 1937?

5. What material did Alfred Nobel mix with nitroglycerin to make it stable?

6. Who is credited with the first successful jump with a parachute in 1783?

7. How does a diesel engine ignite its fuel without using a spark plug?

8. How many possible dots are in a standard Braille cell?

9. What was the first commercial product made using nylon?

10. Why did the British Royal Air Force prefer the ballpoint pen over the fountain pen during WWII?

11. What improvement made 'safety matches' safer than early friction matches?

12. What event reportedly inspired Frank McNamara to invent the first universal credit card?

13. What does the acronym UAV stand for in the context of drone technology?

14. What radioactive isotope is commonly used in ionization smoke detectors?

15. Approximately how long does it take for a modern airbag to inflate during a crash?

16. What made Gaston Planté's 1859 battery different from earlier versions like the Voltaic Pile?

17. What was the name of Robert Fulton’s successful steamboat launched in 1807?

18. A steamboat with a single large wheel mounted at the back is known as what type?

19. The term “mark twain” originally referred to what?

20. Steamboats were especially suited for river travel because they could do what that sailing ships struggled with?