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The Radio Frequency |
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| In the last few years, the electromagnetic spectrum has quietly become a critical part of contemporary life. It enables you to communicate with mobile phones, use remote controls, tune in TV stations, pop corn in the microwave, open your car door without a key, listen to radio stations, and surf the Internet when you��셱e sipping coffee at Starbucks. |
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Understanding the Sl |
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| After the bricks from the Berlin Wall came crashing down, it seemed that democracies would rise from the rubble around the globe. |
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America in the World |
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| 저자 | Robert B. Zoellick |
| 출판사 | Yale University Press |
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Gamers of the World |
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| A new book numbers the new generation that follows the older Xers and the Baby Boomers at 90 million. They represent what we��셶e called the Millennial generation, plus a large proportion of the younger Xers. |
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Science Is Profoundl |
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| Since 1945, mankind��셲 worst nightmare has been nuclear weapons. But, for the next generation, the worst nightmare is likely to be biological weapons. |
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[92]권 
