The lowest possible temperature in the Celsius scale is minus 273.15 degrees Celsius. So that begs the notion of re-referencing our reference point, of changing our reference points.

在摄氏温标中,绝对零度是-273。15摄氏度5,这样，我们需要重新定义参考点,将零度的参考点取在绝对零度处，而不是0摄氏度处。

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And if you go back into the 1800's when thermodynamics was starting, there were a zillion different temperatures scales Everybody had their own favorite temperature scale The one that we're most familiar with is the centigrade or Celsius scale where mercury was the substance, and the volume of mercury is the property.

如果你回头看看19世纪温度计,刚开始使用的时候，那时有不计其数的不同温标,每个人都有他们自己最喜欢的温标,我们最熟悉的是,摄氏温标，用水银,作为工作物质，水银的体积是所用的性质。

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And so redefining then the temperature scale to the Kelvin scale, where t in degrees Kelvin is equal to t in degree Celsius, plus 273.15.

以K为单位的温度,是以℃为单位的温度,加上273。15度。

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