Across
- 6. His 9-5 job that sparked his interest in communication technology and led to many of his inventions.
- 8. Thomas Edison's father joined a failed revolution, in which he marched on this city.
- 10. Before this invention, electric lights were unreliable, expensive and short-lived.
Down
- 1. This heavy metal used to be the go-to material choice for light bulb filaments because its high electrical resistance.
- 2. This famous person worked for Edison for 6 months.
- 3. Edison's first great invention, it could record and play back audio.
- 4. A sort of scientific rivalry ("war") in the 1880s.
- 5. A grant made by a government that confers upon the creator of an invention the sole right to make, use, and sell that invention for a set period of time.
- 7. The name of the COUNTY in which he was born.
- 9. Thomas ... Edison (his middle name)