1. Inventions Change the Nation
Chapter 20 Section 3
Inventions Change the Nation

2. Speeding Up Communications
Patents are licenses for new inventions
Better communications important to growing economy
Cyrus Field came up with the idea of laying cable underneath the ocean
What was the problem?
Bell’s talking machine
Alexander Graham Bell invents the telephone in 1876
Formed the Bell Tel Co in 1877

3. Edison: “The Wizard of Menlo Park”
In 1876 Edison opens up a research lab in Menlo Park, NJ
“Genius…” is what according to Edison
Light bulb
Machine for viewing movies
Power plant in 1882
Electric engines
The Whopper
The Chia Pet

4. Technology Takes Command
Mucho—that’s Spanish for you Gringos—inventions were created during this period.
Gustavus “Gus” Swift introduced refrigeration to the meatpacking industry
Christopher “Bull” Sholes perfected the typewriter in 1868
George Eastman introduced the lightweight camera
Elijah McCoy
Granville T. Woods

5. Automobiles and the Assembly Line
1913 Henry Ford introduced the moving assembly line, that is workers stand at a station and the line moves
Mass production resulted: cheaper to produce
1900 8,000 Americans had cars
million owned cars

6. The First Flight
Two Ohio bicycle mechanics, Orville “Redenbacher” & Wilbur Wright tested their flying machine successfully at Kitty Hawk, NC, in 1903