I remember temperature being a "measure of particle speed", but that 'd presume particles are present.
I remember -too- the phrase "the temperature of a black cavity radiator", which didn't need MUCH "matter" but to make a cavity, you 'd think you need an enclosure, no?
So indeed, no need to think space to be "at 0°K"
The very low pressure ... indeed: every little drop of "liquid" being on the skin would rapidly evaporate (boil), drawing heat from the skin. But that doesn't need to go on "forever": at the temperatures where the skin is cold enough to have the liquid freeze, it returns some heat to the skin and it 'd find a new equilibrium.
Evaporation from the solid state (sublimation) ... may draw still more heat, but could be much slower too. |
