Task #2

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