It's very difficult to get a chance to come to the U.S. I came to a country which ?I've found it personally difficult sometimes?people have a totally different set of opinions. They don't even want to give you a visa. I just found it diffic

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by 刘貂儿 | 2012-10-17

The Department of Education (ED) seeks to encourage innovation in higher education teaching and learning to drive productivity, quality, and equity. To contribute to the national conversation in this arena, ED, in collaboration with the Whi

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by 刘貂儿 | 2013-02-28

Running almost in tandem with the Atomic Age has been the Space Age. American Robert H. Goddard was one of the first scientists to experiment with rocket propulsion systems. In his small laboratory in Worcester, Massachusetts, Goddard worked with liquid o

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by 刘貂儿 | 2013-02-28

One of the most spectacular -- and controversial -- accomplishments of U.S. technology has been the harnessing of nuclear energy. The concepts that led to the splitting of the atom were developed by the scientists of many countries, but the conversion of

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by 刘貂儿 | 2013-02-28

During the 19th century, Britain, France, and Germany were at the forefront of new ideas in science and mathematics. But if the United States lagged behind in the formulation of theory, it excelled in using theory to solve problems: applied science. This

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by 刘貂儿 | 2013-02-28

In the early decades of its history, the United States was relatively isolated from Europe and also rather poor. Nonetheless, it was a good place for science. American science was closely linked with the needs of the people, and it was free from European

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