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A Technological Revolution

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Presentation on theme: "A Technological Revolution"— Presentation transcript:

1 A Technological Revolution
Chapter 14 The Expansion of American Industry

2 Daily Life- 1865/1900 1865 No indoor electric lighting
No refrigeration Mail: East Coast Midwest: 10 days; 3 weeks to reach West Coast By 1900, there is lots of growth in new ideas & inventions PATENT Typewriter, phonograph, sewing machine U.S. standard of living becomes one of world’s best

3 Railroads Improve Transportation
Until 1850’s, steamships provided most of transportation Before Civil War, most trains are short lines Safety issues with trains

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5 Transcontinental Railroad
Railroad business will improve greatly after the Civil War The key was the building of the Transcontinental Railroad This will allow people to travel from coast to coast

6 Transcontinental RR Built with blood, sweat, politics and thievery
Government subsidies fund much of project- huge loans and land grants were given to 2 companies Mostly immigrant labor used

7 Transcontinental RR Union Pacific RR
Central Pacific RR Built east from Sacramento, CA over Sierra Nevada mountains Chinese labor used-paid less than other workers Union Pacific RR Built west from Omaha, NE over Rocky Mountains 20,000 workers laid 5 miles of track a day and die by the hundreds Irish & war veterans

8 Transcontinental RR Transcontinental Railroad After 7 years, the two crews meet at Promontory Point, UT The owner of Central Pacific RR, Leland Stanford drives the “golden spike” Play-by-play is delivered to the nation via telegraph

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10 Communication Advances
Telegraph Samuel Morse receives patent Morse Code- code of short/long electric impulses which replicate alphabet (1844) Begins communication revolution

11 Communication Advances
Telephone Alexander Graham Bell patents phone in 1876 A Scottish immigrant , Bell was 29 Helps establish AT&T to build long distance lines Early lines only connect 2 places

12 Electric Power Will change people’s eating, working & sleeping habits
Will lead to important changes in industrial development

13 The Wizard of Menlo Park “Opportunity is missed by most people because it is dressed in overalls and looks like work.”

14 Edison will help make electric power widely available
Thomas Edison "Genius is one percent inspiration and ninety-nine per cent perspiration. Accordingly, a  'genius' is often merely a talented person who has done all of his or her homework."   Edison will help make electric power widely available Menlo Park is his “invention factory” Phonograph, light bulb & power plant

15 Electric’s Impact Refrigeration possible> reduces food spoilage
Workplace/new jobs > electric-powered machines Many areas of country still go without electric for decades (mainly rural); some just can’t afford appliances

16 The Bessemer Process Through mid-1800’s, the U.S. depends on iron for railroads & building 1856- Englishman Henry Bessemer receives patent for Bessemer Process Steel-making process is now easier & cheaper Advantages of steel: lighter, stronger & more flexible

17 Bessemer Process * allows for mass production of steel
** Before Bessemer: Iron to steel: 3-5 tons/day ** After: 3-5 tons in 15 minutes By 1880: 1 million tons of steel produced By 1910: 25 million tons

18 The Brooklyn Bridge

19 The Brooklyn Bridge New York City grows rapidly after Civil War
To help Manhatten workers get to work in Brooklyn easier, a suspension bridge will be built Longest in world (then); symbol of American success


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