13.4 More Technological Advances

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Across
  1. 2. American inventor, he patented an improved sewing machine, and by 1860 was the largest manufacturer of sewing machines in the country.
  2. 5. American artist and inventor, he applied scientists’ discoveries of electricity and magnetism to develop the telegraph, which soon sent messages all across the country.
Down
  1. 1. American industrialist, he developed a steel plow to ease difficulty of turning thick soil on the Great Plains.
  2. 3. American inventor and industrialist, he invented the mechanical reaper and harvesting machine that quickly cut down wheat.
  3. 4. a machine perfected by Samuel F. B. Morse in 1832 that uses pulses of electric current to send messages across long distances through wires
  4. 6. a system developed by Alfred Lewis Vail for the telegraph that used a certain combination of dots and dashes to represent each letter of the alphabet