Across
- 2. Discovered a method to make steel stronger at a low cost
- 3. Created the lightweight camera
- 6. A tax on imported goods
- 9. Invented the underwater telegraph
- 10. With his many inventions, Edison influenced the modern age of _________.
- 12. Another name for oil in the 1800s
- 14. Discovered a method to allow communication with a telegraph between moving trains
- 15. Invented the first gasoline automobile
- 16. A method in which products are put together as they move along a conveyor belt
Down
- 1. Invented the telephone
- 4. Discovered a method to make shoe production faster
- 5. Tested the first gas-powered airplane
- 7. Discovered a method to make the production of cars faster
- 8. Document giving someone the sole right to make and sell an invention
- 11. Invented the Lightbulb
- 13. Invented the phonograph
- 17. Invented the typewriter
