Originally Posted by Medwed
Originally Posted by tesseract
I don't understand the temperature of the earth part at all. Temperature is very clearly measured.
Temperature has also been given a definition and a scale relative to natural events on this planet (except of course an idiot Fahrenheit system).
Are you suggesting salt water doesn't achieve a eutectic mixture very slowly on this planet ?
On the other hand, the absolute temperature scale, in kelvin, is pegged to a physically impossible lower limit of 0 that, according to all existing theories, cannot be achieved (but you can, in certain cases, reach negative kelvin which is a bit counter-intuitive since it's hotter than positive temps, until you consider that we should maybe use т ~ 1/T so as to avoid the discontinuity and have a smooth 0 to ∞ , I guess Gibonius could speak more to this)
Originally Posted by Ataturk
The point I was making is that you can't just stick a thermometer in Louisiana and get the earth's temperature. It has to be estimated by looking to many different sources, taken at discrete times by fallible people and instruments, not to mention all that data needing to be interpreted, which inevitably leads to a certain amount of unreliability.
why would you expect a single measurement to capture a system as complex as a planet? It would make sense for a tub of water, but not when scaling up to such masses. But it also doesn't mean it's impossible to understand -- there's a lot of good physics behind why temperatures in Louisiana are different than some other random geographical point on the planet. I guess Gibonius could speak more to this, tooEdited by the shah - 12/17/15 at 7:52pm