What this means for a football is that a slow-moving ball with a lot of spin will have a larger sideways force than a fast-moving ball with the same spin.

对足球来说，一个转速很高但球速慢的足球将比转速相同的快速球得到更大的侧向力。

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Try to spin as quickly as you can, and try not to slow down to concentrate on planting your feet perfectly when you first start this exercise.

尽你所能地快速转身，在开始作这个练习时不要刻意放慢落脚。

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The free energy allows us to spin up what is sticky or stuck and slow down if needed what is spinning too rapidly to remain in balance.

自由能量允许我们转动那些粘稠或者阻滞的地方，或者如果需要的话减缓那些转动过快的地方，以保持均衡。

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It had been a dreadfully dispiriting experience for England's bowlers - none more so than Graeme Swann, who, on a pitch taking slow spin, remained wicketless after 38 overs.

BBC: Jonathan Agnew column

Another would be to slow a pulsar's spin down in pretty short order.

ECONOMIST: Pulsars

The problem: Bypass fans operate most efficiently at slow speeds, while turbines like to spin fast.

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