Exploring and Making Use of Space Since the space race spurred the United States and the Soviet Union to develop better ways of getting into and exploring space, the world has benefited from an increasing knowledge of Earth, our solar system, and the universe. Satellites have also helped us to communicate and navigate around the world. 1 of 7 The World Today Section 5: Advances in Science and Technology Witness History Audio: A Giant Leap for Mankind Note Taking Transparency 208 Witness History Video: The Space Race

The Computer Revolution Since the proliferation of the personal computer in the 1970s, people’s lives have been transformed. Some computer programs and robots replaced human jobs, some programs made existing jobs much easier, and some saved lives by helping to predict disasters. The Internet began as a joint effort between the U.S. government and universities. It has made information- sharing much easier and led to an explosion of electronic commerce. 2 of 7 The World Today Section 5: Advances in Science and Technology Color Transparency 209: Communications Technology, Selected Countries Witness History Audio: Twentieth Century Scientific Milestones

Advances in Medicine and Biotechnology Biotechnology and genetic engineering have brought such benefits as longer life expectancies and increased food production that helps to feed the world. There are also advances that worry some people, such as genetically modified foods and cloning. 3 of 7 The World Today Section 5: Advances in Science and Technology QuickTake Section Quiz Progress Monitoring Transparency QuickTake Chapter Test

The World Today: Section 5 Note Taking Transparency of 7

The World Today: Section 5 Color Transparency 209: Communications Technology, Selected Countries 5 of 7

The World Today: Section 5 Progress Monitoring Transparency (1 of 2) 6 of 7

The World Today: Section 5 Progress Monitoring Transparency (2 of 2) 7 of 7