chapter 13 section 1
Across
- 3. inventor that invented the steel-tipped plow
- 4. or changed
- 5. Born on a Virginia farm he became interested in machines that would make farming easier
- 8. new ideas or methods
- 9. this code, which Morse developed and which bears his name is series of dots and dashes representing the letters of the alphabet
- 10. an apparatus that used electric signals to transmit messages
- 12. invented the sewing machine in 1846
- 13. American inventor, was seeking support for a system of telegraph lines
Down
- 1. was the first American locomotive
- 2. designed and built the first American steam locomotive in 1830
- 6. demonstrated a reliable steamboat
- 7. with sleek hulls and tall sails
- 11. wipe out