1. Who discovered penicillin in 1928?

2. Who was the first woman to fly solo across the Atlantic Ocean?

3. What was the first capital of the United States?

4. Which Han Dynasty official is traditionally credited with inventing the paper-making process?

5. What material did Thomas Edison successfully use as a filament to create his long-lasting light bulb?

6. Which medical researcher developed the first 'inactivated' (killed-virus) polio vaccine?

7. Who is the American inventor of the first fully electronic television system?

8. What substance did Carl von Linde use as the primary refrigerant in his 1876 mechanical cooling system?

9. Which of these devices was made possible primarily by the high energy density of the Lithium-Ion battery?

10. What were the two metals used by Alessandro Volta to create the first battery?

11. Why was Bakelite considered the first 'true' plastic?

12. What was the first commercial product ever scanned using a barcode in 1974?

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

14. Why is the steam turbine more efficient than the traditional steam engine used in locomotives?

15. What does a pacemaker use to regulate a patient's heartbeat?

16. During WWII, in which country did the paper clip become a symbol of national resistance?

17. What was the name of the top-secret U.S. project that developed the first atomic bomb?

18. Which gas was used in the first successful public demonstration of surgical anesthesia in 1846?

19. Who is most famously credited with developing the first commercially successful steamboat in the United States?

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