Across
- 1. was used to project images onto paper, which allowed them to be traced.
- 6. Used for transporting materials in factories, mines, and warehouses.
- 7. It cut down on the amount of time it took to send messages to each other.
- 8. Used to connect fabric and other materials together with thread.
Down
- 2. A self-propelled motor vehicle intended for passenger transportation on land.
- 3. The purpose was to record sound/play them.
- 4. It was widely used by professional writers, in offices, business correspondence in private homes, and by students preparing written assignments.
- 5. Produced a constant electric current,opening the way for many other discoveries and inventions.