3 ms·

My chemistry teacher warned me to stay away from people who would use the ° sign for Kelvin ("90°K") or leave it out when talking about degrees centigrade ("-18

• YawningAngel 5y ago
  He doesn't, he consistently omits the degree symbol. It's used in a direct quote
• codetrotter 5y ago
  It is true that one should say just Kelvin and not “degrees Kelvin”. But it wasn’t always so. From https://en.wikipedia.org/wiki/Kelvin https://en.wikipedia.org/wiki/Kelvin > In 1967/1968, Resolution 3 of the 13th CGPM renamed the unit increment of thermodynamic temperature "kelvin", symbol K, replacing "degree Kelvin", symbol °K. And from Lord Kelvin himself in his "On an Absolute Thermometric Scale", a copy of which is at https://web.archive.org/web/20080201095927/http://zapatopi.net/kelvin/papers/on_an_absolute_thermometric_scale.html https://web.archive.org/web/20080201095927/http://zapatopi.n... > The characteristic property of the scale which I now propose is, that all degrees have the same value; that is, that a unit of heat descending from a body A at the temperature T° of this scale, to a body B at the temperature (T-1)°, would give out the same mechanical effect, whatever be the number T. This may justly be termed an absolute scale, since its characteristic is quite independent of the physical properties of any specific substance. So even Lord Kelvin himself was originally speaking of degrees in his absolute scale.
  • seoaeu 5y ago
    >> In 1967/1968, Resolution 3 of the 13th CGPM renamed the unit increment of thermodynamic temperature "kelvin", symbol K, replacing "degree Kelvin", symbol °K. Which is particularly relevant given the usage is within a quote of a 1962 paper