2. Bessemer Steel ProcessBessemer Steel Process  Industrial process for the manufacture of steel  Involved injecting air into molten iron to remove impurities  Removal of carbon made a lighter, more flexible, rust-resistant metal known as steel.  This process drastically lowered the price of building materials.

3. The Bessemer ProcessThe Bessemer Process

4. New Uses for SteelNew Uses for Steel  The railroads, with thousands of miles of track, became the biggest customers for steel.  Other uses:  Glidden’s barbed wire  Deere’s farming equipment  Transformed the construction industry, allowing for more complex structure to be built  ie) The Brooklyn Bridge

5. Inventions Promote ChangeInventions Promote Change  Inventions changed the way people lived and worked  Inventions such as the typewriter, incandescent light bulb, phonograph, telephone, and electric motor, drastically changed peoples lifestyles.

6. Christopher SholesChristopher Sholes  Invented the typewriter in 1867  Drew more women into the workforce

7. Thomas Alva EdisonThomas Alva Edison  Invented the incandescent light bulb, and later invented an entire system for producing and distributing electrical power  Electricity allowed manufacturers to locate their plants wherever they wanted, not just near sources of power, such as rivers.

9. Alexander Graham BellAlexander Graham Bell  Invented the telephone in 1876, opening the way for a worldwide communications network.

10. Regents QuestionRegents Question  The invention of the typewriter and the telephone in the mid-1800s helped lead to  1) a shorter work week  2) more jobs for women  3) a market for electricity  4) mass production

11. Industrialization  Freed some factory workers from backbreaking labor  Helped improve workers’ standard of living  Job market growth  Urban population increased

12. Mass ProductionMass Production

13. The Assembly LineThe Assembly Line  What problems or benefits can you foresee with the implementation of the assembly line?