And the temperature scale that turns out to be well-defined and ends up giving us the concept of an absolute zero is the ideal gas thermometer.

比如理想气体温标,它有精确的定义,并能引出绝对零度的概念,今天我们就先来谈谈它。

麻省理工公开课 - 热力学与动力学课程节选

All right, so now we have the makings of a good thermometer and a good temperature scale.

这一常数只决定于温度,于是我们现在,可以定义一个理想的温度计和温标了。

麻省理工公开课 - 热力学与动力学课程节选

What a great temperature scale.

多么伟大的温标。

麻省理工公开课 - 热力学与动力学课程节选

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。

麻省理工公开课 - 热力学与动力学课程节选

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。

麻省理工公开课 - 热力学与动力学课程节选

We have an interpolation scheme between zero and 273.16 with two values for this quantity, and we have a linear interpolation that defines our temperature scale, our Kelvin temperature scale.

的两个值做线性插值,就得到了开尔文温标,直线的斜率等于水的三相点,也就是这一点处的f的值,再除以273。16，这是这条直线的斜率，这个量，f在三相点处的值。

麻省理工公开课 - 热力学与动力学课程节选

So, this temperature, this absolute zero here, which is absolute zero on the Kelvin scale.

在负无穷处，现在把绝对零度定义为，开尔文温标中的0度。

麻省理工公开课 - 热力学与动力学课程节选

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。

麻省理工公开课 - 热力学与动力学课程节选