由于不同的同位素有不同的衰变速率，每种方法都不会拘泥于标准数值。
Because different isotopes decay at different rates, each method provided a slightly different measuring stick.
他们的发现使这种衰变速率的反常变化是由太阳中微子造成的论点得到了加强。
Their findings strengthened the argument that the strange swings in decay rates were caused by neutrinos from the sun.
没人知道中微子中微子是如何同放射性材料发生作用并改变他们的衰变速率的。
No one knows how neutrinos could interact with radioactive materials to change their rate of decay.
这个事情要从世界各地的教室里说起，在那里学生学习到特定核素的衰变速率是恒定的。
The story begins, in a sense, in classrooms around the world, where students are taught that the rate of decay of a specific radioactive material is a constant.
他向普渡大学的研究者提出建议：寻找地球上放射性元素衰变速率的变化同太阳自转的关系。
His advice to Purdue: Look for evidence that the changes in radioactive decay on Earth vary with the rotation of the sun.
在一个短实验周期里，具有较长半衰期的C 14样品的衰变速率应该是一个近似常数。
The decay rate of the C-14 sample with its long half-life should be nearly constant during the short duration of the experiment.
“每个人都认为这是实验误差造成的，因为我们从接触物理开始就相信衰变速率是常量。”Sturrock说。
"Everyone thought it must be due to experimental mistakes, because we're all brought up to believe that decay rates are constant," Sturrock said.
但是普渡大学的一组研究者用意想不到的方式挑战了衰变速率恒定这个假设。相比于原子核衰变，他们对随机数更感兴趣。
But that assumption was challenged in an unexpected way by a group of researchers from Purdue University who at the time were more interested in random Numbers than nuclear decay.
当研究者核对已经出版的同位素的数据时，他们发现查到的值和测量到的衰变速率不一致，而这个速率被物理学家假定是一个物理常量。
As the researchers pored through published data on specific isotopes, they found disagreement in the measured decay rates - odd for supposed physical constants.
普渡大学物理教授EphraimFischbach，将探测几种同位素的放射性衰变速率的方法作为一种没有人为输入因素干扰的产生随机数的可能方法。
Ephraim Fischbach, a physics professor at Purdue, was looking into the rate of radioactive decay of several isotopes as a possible source of random numbers generated without any human input.
普渡大学物理教授EphraimFischbach，将探测几种同位素的放射性衰变速率的方法作为一种没有人为输入因素干扰的产生随机数的可能方法。
Ephraim Fischbach, a physics professor at Purdue, was looking into the rate of radioactive decay of several isotopes as a possible source of random numbers generated without any human input.
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