INTRODUCTION INTRODUCTION TO TECHNOLOGYTO TECHNOLOGY

CHAPTER 1CHAPTER 1

IntroductionIntroduction

Technology affects ourTechnology affects our

life routineslife routines Our routines are affected Our routines are affected

by the devices, products, by the devices, products,

and services provided and services provided

by technology.by technology.

IntroductionIntroduction ScienceScience is the study of why natural things happen the is the study of why natural things happen the

way they do.way they do.

TechnologyTechnology is the use of knowledge to turn resources is the use of knowledge to turn resources into goods and services that society needs.into goods and services that society needs.

Technology is the great growling engine of change – Alvin Technology is the great growling engine of change – Alvin Toffler.Toffler.

A comparison of scientists and technologists on page 5.A comparison of scientists and technologists on page 5.

Why Study TechnologyWhy Study Technology

Technology fills our needs and makes our lives Technology fills our needs and makes our lives more comfortable, healthy, and productive.more comfortable, healthy, and productive.

Telephone, television, automobile, refrigeration, Telephone, television, automobile, refrigeration, new medicines etc.new medicines etc.

Technology is responsible for a great deal of the Technology is responsible for a great deal of the progress of the human race.progress of the human race.

To use technology wisely, we must understand To use technology wisely, we must understand what it can and cannot do for us.what it can and cannot do for us.

Technology causes problems, too, such as pollution Technology causes problems, too, such as pollution and crowded highways.and crowded highways.

Technology Satisfies Our Technology Satisfies Our NeedsNeeds

Agricultural TechnologyAgricultural Technology Use of farm machines to harvest enough wheat Use of farm machines to harvest enough wheat

quicklyquickly Medical TechnologyMedical Technology

Use of new medicines, devicesUse of new medicines, devices Trepanation Trepanation

Manufacturing Manufacturing Karl Benz built the first gasoline-driven automobile Karl Benz built the first gasoline-driven automobile

in 1885 in Germanyin 1885 in Germany Henry Ford built his first car in 1896 and founded Henry Ford built his first car in 1896 and founded

Ford Motor Company in 1903Ford Motor Company in 1903 Automobiles are produced at the rate of one per Automobiles are produced at the rate of one per

minute todayminute today

Technology Satisfies Our Technology Satisfies Our NeedsNeeds

Energy SourcesEnergy Sources Water wheels provided most of the power in the Water wheels provided most of the power in the

Middle Ages (about 1100 AD)Middle Ages (about 1100 AD) Oil, gas, coal and nuclear fuels are used generate Oil, gas, coal and nuclear fuels are used generate

power today power today CommunicationCommunication

George Lesage, in 1774, in Geneva, set up a George Lesage, in 1774, in Geneva, set up a telegraph using one wire for each lettertelegraph using one wire for each letter

Satellites are used to bring television signals todaySatellites are used to bring television signals today Transportation Transportation

Wright brother flew the first aircraft 852 feet in Wright brother flew the first aircraft 852 feet in 1903.1903.

Objects and people are moved between earth and Objects and people are moved between earth and space through space shuttles todayspace through space shuttles today

When did Technology When did Technology BeginBegin

Technological time line on pages 494 – 497 Technological time line on pages 494 – 497 People used fire for cooking meat and protection People used fire for cooking meat and protection

from wild animalsfrom wild animals Needles were made from splinters of boneNeedles were made from splinters of bone The plow was developed in EgyptThe plow was developed in Egypt People found ways to make linen cloth, oil lamp, People found ways to make linen cloth, oil lamp,

vehicles, irrigation and sewage systemsvehicles, irrigation and sewage systems They started using water wheel to grind grainThey started using water wheel to grind grain Water wheel was also used in pumping water, Water wheel was also used in pumping water,

making cloth, and smelting ironmaking cloth, and smelting iron The kinds of tools used in different time classify The kinds of tools used in different time classify

historical periodshistorical periods

When did Technology When did Technology BeginBegin

Stone AgeStone Age 1,000,000 BC – 3000 BC1,000,000 BC – 3000 BC Stone was used for many tools. Other materials Stone was used for many tools. Other materials

used were bones and woodused were bones and wood The earliest known canoe was made about The earliest known canoe was made about

6500 BC6500 BC Bronze AgeBronze Age

3000 BC – 1200 BC3000 BC – 1200 BC People made tools and weapons from bronze, a People made tools and weapons from bronze, a

mixture of copper and tin.mixture of copper and tin. Copper could be heated with charcoal to yield Copper could be heated with charcoal to yield

pure copperpure copper