1. INTRODUCTION TO TECHNOLOGY CHAPTER 1

2. Introduction Technology affects our Technology affects our life routines life routines Our routines are affected Our routines are affected by the devices, products, and services provided by technology.

3. Introduction Science is the study of why natural things happen the way they do. Science is the study of why natural things happen the way they do. Technology is the use of knowledge to turn resources into goods and services that society needs. Technology is the use of knowledge to turn resources into goods and services that society needs. Technology is the great growling engine of change – Alvin Toffler. Technology is the great growling engine of change – Alvin Toffler. A comparison of scientists and technologists on page 5. A comparison of scientists and technologists on page 5.

5. Why Study Technology Technology fills our needs and makes our lives more comfortable, healthy, and productive. Technology fills our needs and makes our lives more comfortable, healthy, and productive. Telephone, television, automobile, refrigeration, new medicines etc. Telephone, television, automobile, refrigeration, new medicines etc. Technology is responsible for a great deal of the progress of the human race. Technology is responsible for a great deal of the progress of the human race. To use technology wisely, we must understand what it can and cannot do for us. To use technology wisely, we must understand what it can and cannot do for us. Technology causes problems, too, such as pollution and crowded highways. Technology causes problems, too, such as pollution and crowded highways.

6. Technology Satisfies Our Needs Agricultural Technology Agricultural Technology Use of farm machines to harvest enough wheat quickly Use of farm machines to harvest enough wheat quickly Medical Technology Medical Technology Use of new medicines, devices Use of new medicines, devices Trepanation Trepanation Manufacturing Manufacturing Karl Benz built the first gasoline-driven automobile in 1885 in Germany Karl Benz built the first gasoline-driven automobile in 1885 in Germany Henry Ford built his first car in 1896 and founded Ford Motor Company in 1903 Henry Ford built his first car in 1896 and founded Ford Motor Company in 1903 Automobiles are produced at the rate of one per minute today Automobiles are produced at the rate of one per minute today

8. Technology Satisfies Our Needs Energy Sources Energy Sources Water wheels provided most of the power in the Middle Ages (about 1100 AD) Water wheels provided most of the power in the Middle Ages (about 1100 AD) Oil, gas, coal and nuclear fuels are used generate power today Oil, gas, coal and nuclear fuels are used generate power today Communication Communication George Lesage, in 1774, in Geneva, set up a telegraph using one wire for each letter George Lesage, in 1774, in Geneva, set up a telegraph using one wire for each letter Satellites are used to bring television signals today Satellites are used to bring television signals today Transportation Transportation Wright brother flew the first aircraft 852 feet in 1903. Wright brother flew the first aircraft 852 feet in 1903. Objects and people are moved between earth and space through space shuttles today Objects and people are moved between earth and space through space shuttles today

9. When did Technology Begin Technological time line on pages 494 – 497 Technological time line on pages 494 – 497 People used fire for cooking meat and protection from wild animals People used fire for cooking meat and protection from wild animals Needles were made from splinters of bone Needles were made from splinters of bone The plow was developed in Egypt The plow was developed in Egypt People found ways to make linen cloth, oil lamp, vehicles, irrigation and sewage systems People found ways to make linen cloth, oil lamp, vehicles, irrigation and sewage systems They started using water wheel to grind grain They started using water wheel to grind grain Water wheel was also used in pumping water, making cloth, and smelting iron Water wheel was also used in pumping water, making cloth, and smelting iron The kinds of tools used in different time classify historical periods The kinds of tools used in different time classify historical periods

10. When did Technology Begin Stone Age Stone Age 1,000,000 BC – 3000 BC 1,000,000 BC – 3000 BC Stone was used for many tools. Other materials used were bones and wood Stone was used for many tools. Other materials used were bones and wood The earliest known canoe was made about 6500 BC The earliest known canoe was made about 6500 BC Bronze Age Bronze Age 3000 BC – 1200 BC 3000 BC – 1200 BC People made tools and weapons from bronze, a mixture of copper and tin. People made tools and weapons from bronze, a mixture of copper and tin. Copper could be heated with charcoal to yield pure copper Copper could be heated with charcoal to yield pure copper