Feeny was hardly alone in his aspirations to become an astronaut but, unlike the millions of kids who dream of walking in space, Feeny is actually doing something about it.

芬尼并非惟一渴望成为航天员的人，但是和其他数百万梦想在太空漫步的孩子不同，芬尼真的正在为此努力。

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If hundreds of people are walking in a confined space, and some happen to walk in step, they can generate enough lateral momentum to move a footbridge-just a little.

如果几百人一齐走在一个狭小的空间里，而有些人刚好步调一致时，他们所产生的侧向力足以晃动一条步行桥—只是轻微晃动。

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He has set records in space walking and has logged more than 687 hours in space.

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During the dive, which takes up to four hours due to the high density of the water (it is filled with certain chemicals plus air pressure to simulate the circumstances found in space), the cosmonauts in training practice space walking -- and may lose a few kilos off their waist line in the strenuous process.

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Researchers at the University of Michigan studying 172 research scientists recently found that when the scientists shared the same buildings and overlapped in their daily workplace walking patterns moving between lab space, office space, and the nearest bathroom and elevator they were significantly more likely to collaborate: For every 100 feet of "zonal overlap, " collaborations increased by up to 20%.

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