Graham said that, if someone walked through the beam, it would shut down within a thousandth of a second, then restart once the path was clear.

Graham说，一旦有人穿越光束，它会在千分之一秒内关闭，并在路径无障后即刻重启。

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As these lived for less than a thousandth of a second, their presence was ascertained by examining the daughter atoms into which they quickly decayed.

并且这些原子的生命周期小于千分之一秒，它们的存在可以通过检测它们飞快消失之后留下的子原子而得到确认。

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A year later, they successfully fused two atomic nuclei from these elements, creating their first nucleus of element 113, but it decayed in less than a thousandth of a second.

一年后，他们成功地让两个元素的原子核聚变，创造出了他们的首个113号元素原子核，但过了不到千分之一秒，它就衰变了。

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As these lived for less than a thousandth of a second, their presence was ascertained by examining the daughter atoms into which they quickly decayed.

ECONOMIST: Nuclear physics: Magical shell game | The

The aperture will adjust from F2.9 to F8 without any prompting, and the shutter will set itself anywhere from one-thirtieth of a second to one-one thousandth of a second.

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Think of it this way: if we took one-thousandth of a second of footage from the femto camera video output and slowed it down to the speed of 30 seconds per frame -- the approximate speed of a standard TV broadcast -- it would take us a lifetime to watch.

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