Impact of Inventions Introduction

1
Impact of InventionsIntroduction

• Cleo Crank
• Greenville Tech Charter High School
• Spring 2004

2
Lets Give It A TryEssential Core
QuestionWhat causes change?

• Money
• Technology
• Leaders
• War
• Ideas

3
Dialogue Questions

• ??? What caused change in America at the turn of
• the century?
• ??? What characteristics are necessary to be an
  inventor?
• ??? How do inventions affect Americans at
• 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

5
TransportationAutomobile

• 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
• Kitty Hawk, N.C.
• Dec 7, 1903
• 120 feet for 12 seconds
• Little public attention
• 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
• WWI dog fights
• 1925 service flights made at night

8
CommunicationRadio

• Guglielmo Marconi
• invented a spark transmitter
• Dec. 1898 - the world's first radio factory
• The American Marconi Co. was formed in 1899.
• 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.

9
CommunicationTelephone

• Invented in 1876
• Alexander Graham Bell teacher for the deaf in
  Boston
• Turns sound waves into electrical current

• 1880 -85 cities had telephone systems
• 1885 Am. Telephone and Telegraph Co founded

10
Living SpaceSteel 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
• Connects Atlantic and Pacific Ocean

12
Panama Canal

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

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Closing Question

• What changes do you see in communication,
  transportation,
• and construction in Americas future?

14
Credits

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