1. Who invented the light bulb?

2. Which material did Edison eventually use to create a filament that lasted over 1,200 hours?

3. What was James Watt's primary invention that made the steam engine efficient?

4. Which two elements did Marie Curie discover?

5. What was the name of the device Alan Turing helped build to crack the Enigma code?

6. What was the purpose of Eli Whitney's cotton gin?

7. What type of organism produced the substance Fleming named Penicillin?

8. Which two digits form the basis of the binary system documented by Leibniz?

9. What material was the shell of the first computer mouse prototype made of?

10. What did Marconi do to his antenna to significantly increase the range of his radio signals?

11. What did John Walker refuse to do with his invention of the friction match?

12. How did users generate power for Alfred Traeger's Outback radio?

13. What did Josephine Cochrane use to clean the dishes instead of mechanical scrubbers?

14. How did the 'coherer' device detect radio waves in Marconi's early experiments?

15. What was the main advantage of the Magnetic Detector over the earlier coherer?

16. What problem did Marconi's 'syntonic' or tuned telegraph solve?

17. How did Fulton's steamboat overcome the challenge of traveling against river currents?

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

19. What sequence of numbers did Ada Lovelace's first algorithm intend to calculate?

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