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*J N C*
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*J N C*

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  • 1. Ch.20 Sec. 1 The Impact of Science and Technology By: Joe Lopez Nancy Pineda Carla Aviles
  • 2. Exploring the Solar System and Beyond
  • 3. Cooperation in Space <ul><li>There was much competition between the United States and the Soviet Union in the space race </li></ul><ul><li>In 1972 years before the Cold War was over the Us and Soviet space programs began to work </li></ul><ul><li>This goal was achieved on July 17 1975 when both spacecrafts flew 140 miles above earth </li></ul><ul><li>The Soviets were the first to send an international crew into space named Soyuz 28 which orbited the Earth in 1978 included a Czech cosmonaut </li></ul>
  • 4. Cooperation in Space <ul><li>US space shuttles included astronauts from Saudi Arabia, France, Germany, Canada, Italy, Japan, Israel, and Mexico. </li></ul><ul><li>A project sponsored by the US, Russia, and 14 other nations for the building of the International Space Station (ISS). </li></ul><ul><li>In 1998 U.S. shuttles and Russian spacecrafts transported sections of the ISS to be assembled in space when it is completed it will be the size of a football field. </li></ul>
  • 5.  
  • 6. Exploring the Universe <ul><li>The Soviet Venera spacecraft in the 1970s and the US probe Magellan in 1990 provided in-depth information about Venus </li></ul><ul><li>On a 12-year journey the U.S. Voyager 2 sent dazzling pictures of Jupiter, Saturn, Uranus, and Neptune back to earth </li></ul>
  • 7. Exploring the Universe <ul><li>Both the US and Soviets showed interest in Mars but only the US sent the probe Pathfinder which landed on Mars in 1997 </li></ul><ul><li>In 1990 the U.S. space agency NASA and European agency ESA worked together to developed and launch the Hubble Space Telescope to sent pictures of orbiting space </li></ul>
  • 8. Expanding Global Communications
  • 9. Smaller, More Powerful Computers <ul><li>Since the 1960s, artificial satellites launched into orbit around Earth have aided worldwide communications </li></ul><ul><li>With Satellite communication on the world has become a global village </li></ul><ul><li>In the 1940s, when computers first came into use they took up a huge room they required fans or an elaborate air conditioning system to cool it down </li></ul>
  • 10. Smaller, More Powerful Computers <ul><li>Today a variety of consumer products such as microwave ovens, telephones, keyboard, instruments, and cars used computers and chips </li></ul><ul><li>Computers have become essential in most offices, and millions of people around the globe have computers in their homes </li></ul>
  • 11.  
  • 12. Communication Networks <ul><li>Starting in the 1990s, businesses and individuals began using internet. </li></ul><ul><li>The internet is a voluntary linkage of computer networks around the world. </li></ul><ul><li>It began in the late 1960s as a method of linking scientist so they could exchange information about research. </li></ul><ul><li>Between 1995 and late 2002 the number of worldwide internet users soared from 26 million to more than 600 million. </li></ul>
  • 13. Communication Networks <ul><li>Internet, along with fax machines, transmits information electronically to remote locations </li></ul><ul><li>Both paved the way for home offices and telecommuting working at home using computers connected to a business network. </li></ul><ul><li>Technology has change how people work </li></ul>
  • 14. Transforming Human Life
  • 15. Health and Medicine <ul><li>  </li></ul><ul><li>Surgeons seldom performed operations on sensitive areas such as the eye or the brain Before World War II  </li></ul><ul><li>Doctors use CAT scans and MRI techniques, to diagnose injuries, detect tumors, or collect other medical information </li></ul><ul><li>Technology allowed scientists to isolate and examine individual genes that are responsible for different traits </li></ul>
  • 16. Health and Medicine <ul><li>Through genetic engineering, scientists were able to introduce new genes into an organism to give that organism new traits. </li></ul><ul><li>Cloning is the creation of identical copies of DNA, the chemical chains of genes that determine heredity. </li></ul>
  • 17.  
  • 18. The Green Revolution <ul><li>Agricultural scientists around the world started a campaign known as the green revolution, In the 1960s, it was an attempt to increase food production worldwide </li></ul><ul><li>The green revolution helped avert famine and increase crop yields in many parts of the world </li></ul><ul><li>The green revolution had its negative side, fertilizers and pesticides often contain dangerous chemicals that may cause cancer and pollute the environment </li></ul>
  • 19. The Green Revolution <ul><li>Also, the cost of the chemicals and the equipment to harvest more crops was far too expensive for an average peasant farmer </li></ul><ul><li>Science and technology have changed the lives of millions of people </li></ul>

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