文艺复兴时期，尼古拉·哥白尼，约翰尼斯·开普勒和伽利略·伽利雷等人的伟大思想展现了科学研究和发现的力量。

During the Renaissance, the great minds of Nicolaus Copernicus, Johannes Kepler and Galileo Galilei demonstrated the power of scientific study and discovery.

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比如，你一直弄不清楚为什么：刚读过毕达哥拉斯定理，马上又读约翰尼斯·开普勒。

For instance, you're never quite sure why, having just read about the Pythagorean theorem, you're now reading about Johannes Kepler.

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400年前，约翰·开普勒发现太阳风作用形成彗尾的现象，并由此提出星际航行的构想，但这常被认为是科幻小说里的内容。

Often considered the stuff of science fiction, sailing through space was suggested 400 years ago by astronomer Johannes Kepler who observed comet tails blown by the solar wind.

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