Impact of InventionsImpact of InventionsIntroductionIntroduction

Cleo CrankCleo Crank

Greenville Tech Charter High Greenville Tech Charter High SchoolSchool

Spring 2004Spring 2004

Let’s Give It A Try……Let’s Give It A Try……

Essential Core Question:Essential Core Question:“What causes change?”“What causes change?”

• MoneyMoney

• TechnologyTechnology

• LeadersLeaders

• WarWar

• IdeasIdeas

Dialogue QuestionsDialogue Questions

?????? What caused change in America at the What caused change in America at the turn ofturn of

the century?the century?

?????? What characteristics are necessary to be What characteristics are necessary to be an an inventor? inventor?

?????? How do inventions affect Americans at How do inventions affect Americans at

work, home and play?work, home and play?

?????? What are some negative and positive What are some negative and positive affects of change?affects of change?

Opening QuestionOpening Question

What invention had the biggest impact on What invention had the biggest impact on Americans at work, at home and at play?Americans at work, at home and at play?

Transportation Communication Living Transportation Communication Living SpaceSpace

TransportationTransportationAutomobileAutomobile

““You can have a You can have a model T in any model T in any color as long as color as long as you choose black.”you choose black.”

Henry Ford Henry Ford – Designed and built an Designed and built an

automobile in his homeautomobile in his home– 1903 Ford Motor 1903 Ford Motor

Company foundedCompany founded– 1908 – Model T sold for 1908 – Model T sold for

$880$880

AirplaneAirplane

• Orville and Wilbur WrightOrville and Wilbur Wright– Kitty Hawk, N.C.Kitty Hawk, N.C.– Dec 7, 1903Dec 7, 1903– 120 feet for 12 seconds120 feet for 12 seconds

• Little public attentionLittle public attention• Minimum newspaper Minimum newspaper

coveragecoverage

““National suspicion that National suspicion that the sky was a place only the sky was a place only for birds, angels and for birds, angels and fools.”fools.”

AirplaneAirplane

1905 – 24 mile flights1905 – 24 mile flights

1920 1920 • transcontinental air transcontinental air

serviceservice• WWI dog fightsWWI dog fights

1925 – service flights 1925 – service flights made at nightmade at night

CommunicationCommunicationRadioRadio

• Guglielmo Marconi Guglielmo Marconi – invented a spark transmitter invented a spark transmitter – Dec. 1898 - the world's first Dec. 1898 - the world's first

radio factory radio factory

• The American Marconi Co. The American Marconi Co. was formed in 1899. was formed in 1899.

• Marconi controlled patents for Marconi controlled patents for the Lodge tuner with dial and the Lodge tuner with dial and Fleming valve that amplifies Fleming valve that amplifies electrical current electrical current

• Company sold spark Company sold spark transmitters to the U.S. Navy transmitters to the U.S. Navy for point-to-point for point-to-point transmission. transmission.

CommunicationCommunicationTelephoneTelephone

• Invented in 1876Invented in 1876• Alexander Graham Alexander Graham

Bell – teacher for the Bell – teacher for the deaf in Bostondeaf in Boston

• Turns sound waves Turns sound waves into electrical currentinto electrical current

• 1880 -85 cities had 1880 -85 cities had telephone systemstelephone systems

• 1885 Am. Telephone 1885 Am. Telephone and Telegraph Co and Telegraph Co foundedfounded

Living SpaceLiving SpaceSteel Suspension BridgeSteel Suspension Bridge

Innovative construction changed the face of AmericaInnovative construction changed the face of America Brooklyn Bridge completed in 1883Brooklyn Bridge completed in 1883

Spanned 1,598 feetSpanned 1,598 feet Steel cables suspended from towers Steel cables suspended from towers Many people skepticalMany people skeptical

Living Space Living Space Panama CanalPanama Canal

• Cut through the Isthmus of PanamaCut through the Isthmus of Panama

• Connects Atlantic and Pacific OceanConnects Atlantic and Pacific Ocean

Panama CanalPanama Canal

• Level raised 85 Level raised 85 feet above sea feet above sea levellevel

• Locks to raise and Locks to raise and lower ships lower ships

• 9 mile long channel 9 mile long channel through solid rock through solid rock mountainsmountains

• 120 feet depth120 feet depth

Closing QuestionClosing Question

What changes do you see in What changes do you see in communication, communication, transportation, transportation,

and construction in and construction in America’s future?America’s future?

CreditsCredits

CreditsCredits

All photos of curtsey of the All photos of curtsey of the Library of Congress Library of Congress American Memory American Memory Collection for the National Digital LibraryCollection for the National Digital Library

Text information curtsey of Text information curtsey of The The AmericansAmericans by Gerald A. Danzer by Gerald A. Danzer (McDougal Littell. Evanston, Illinois. (McDougal Littell. Evanston, Illinois. 1998.)1998.)