1. Impact of Inventions Introduction Cleo Crank Greenville Tech Charter High School Spring 2004

2. Let’s Give It A Try…… Essential Core Question: “What causes change?” Money Money Technology Technology Leaders Leaders War War Ideas Ideas

3. Dialogue Questions ??? What caused change in America at the turn of the century? the century? ??? What characteristics are necessary to be an inventor? ??? How do inventions affect Americans at work, home and play? work, home and play? ??? What are some negative and positive affects of change?

4. Opening Question What invention had the biggest impact on Americans at work, at home and at play? Transportation Communication Living Space Transportation Communication Living Space

5. Transportation Automobile “You can have a model T in any color as long as you choose black.” Henry Ford –Designed and built an automobile in his home –1903 Ford Motor Company founded –1908 – Model T sold for $880

6. Airplane Orville and Wilbur Wright Orville and Wilbur Wright –Kitty Hawk, N.C. –Dec 7, 1903 –120 feet for 12 seconds Little public attention Little public attention Minimum newspaper coverage Minimum newspaper coverage “National suspicion that the sky was a place only for birds, angels and fools.”

7. Airplane 1905 – 24 mile flights 1920 transcontinental air service transcontinental air service WWI dog fights WWI dog fights 1925 – service flights made at night

8. Communication Radio Guglielmo Marconi Guglielmo Marconi –invented a spark transmitter –Dec. 1898 - the world's first radio factory The American Marconi Co. was formed in 1899. The American Marconi Co. was formed in 1899. Marconi controlled patents for the Lodge tuner with dial and Fleming valve that amplifies electrical current Marconi controlled patents for the Lodge tuner with dial and Fleming valve that amplifies electrical current Company sold spark transmitters to the U.S. Navy for point-to-point transmission. Company sold spark transmitters to the U.S. Navy for point-to-point transmission.

9. Communication Telephone Invented in 1876 Invented in 1876 Alexander Graham Bell – teacher for the deaf in Boston Alexander Graham Bell – teacher for the deaf in Boston Turns sound waves into electrical current Turns sound waves into electrical current 1880 -85 cities had telephone systems 1880 -85 cities had telephone systems 1885 Am. Telephone and Telegraph Co founded 1885 Am. Telephone and Telegraph Co founded

10. Living Space Steel Suspension Bridge Innovative construction changed the face of America Brooklyn Bridge completed in 1883  Spanned 1,598 feet  Steel cables suspended from towers  Many people skeptical

11. Living Space Panama Canal Cut through the Isthmus of Panama Cut through the Isthmus of Panama Connects Atlantic and Pacific Ocean Connects Atlantic and Pacific Ocean

12. Panama Canal Level raised 85 feet above sea level Level raised 85 feet above sea level Locks to raise and lower ships Locks to raise and lower ships 9 mile long channel through solid rock mountains 9 mile long channel through solid rock mountains 120 feet depth 120 feet depth

13. Closing Question What changes do you see in communication, transportation, What changes do you see in communication, transportation, and construction in America’s future? and construction in America’s future?

14. Credits Credits  All photos of curtsey of the Library of Congress American Memory Collection for the National Digital Library Library of Congress Library of Congress  Text information curtsey of The Americans by Gerald A. Danzer (McDougal Littell. Evanston, Illinois. 1998.)