Across
- 1. Railroad (Underground Railroad and a literal railroad)
- 4. Who invented the addition for the ironing board
- 9. Charles B Brooks invented this street big broom
- 10. What was Katherine Johnson's world-changing job for NASA's spacecraft?
- 12. What did Thomas L. Jennings invent and receive the patent?
- 13. he got soaked for his invention
- 15. genius; graduated the high school at 14, 2 degrees at 18
- 17. His invention is delicious; turns into something which is almost his last name
- 18. artificial heart pacemaker & resistor for electrical devices
Down
- 2. With his invention, you can travel up and down for miles.
- 3. the lawsuit was a big win
- 5. 1 selling toy in the US
- 6. The initials of his invention are the same as the initials of his name
- 7. lubricating cup
- 8. What does the middle name of Thomas L. Jennings stand for?
- 11. Who can be derived from the Tom & Jerry animation?
- 14. Light bulb improvement
- 16. Frederick McKinley Jones' invention is worldwide contribution