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Biotechnology
 This program describes three practical applications of DNA technology: the use of gene transfer to improve plant species, the use of molecular probes to quickly identify disease-causing organisms, and the development of antigen vaccines. The program ...(more details) |
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The Forces of Nature
Scientists have always been interested in probing the inner structure of matter. Now they have laid the foundation of a unified theory that four basic forces are responsible for the world as we know it: gravity, electromagnetic force, radioactivity, ...(more details) |
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The Tools of Modern Astronomy
The earth is only a tiny dot in a mystery-filled universe, but modern astronomy has developed powerful tools to enable us to gaze farther and farther into the cosmos and help us better understand its evolution. This program gives us an overview of wh...(more details) |
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Preserving Forests
Every year, millions of acres of forest are destroyed by fire, insects, and overcutting. This program looks at various ways in which forest management and science can help preserve forests: the battle against fire and insect pests; and the attempts t...(more details) |
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Time
Society is governed by time and, consequently, by the need to measure it. From the water clock to the atomic clock, this program shows how various time-measuring techniques have developed. It also gives us an idea of the immensity of the scale of tim...(more details) |
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