top
top| Temperature
K (Kelvin) |
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| Rough Draft |
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Doables:
Cleanup.
define T
include air molecule energy in scale (velocity if little enough variation)
ranges of measurement devices...
extracted oom 10^0 thru 10^4.
colorize something: 10^4 white, 3 red, 2 plain, 1 and 0... ?
a nice T vs distance from sun illustration
Cruft:
The average kinetic energy of a gas molecule is found to be equal to
3kT/2. Maxwellian
distribution
k = 1.381 x 10^-23 J/K
3k/2 = 2.07 x 10^-23 J/K
Total energy = oT^4 where the total energy is per unit area per second
emitted by the back body, T is its absolute (thermodynamic) temperature
and o is the Stefan-Boltzmann constant.
(rho) = 5.670e-8 W/m^2/K^4 =~ 10^-7 W/m^2/K^4
Planck
curve
Wien's law, which states: lambda(max) ~ 0.29/T,
where l(max) is the wavelength of maximum brightness in cm and T is the
absolute temperature of the black body.
Wien's displacement law constant 2.897 756 x 10-3 m K.
m=foo/K
f = c/l =~ 2.998e8 m/s / above = 1.03e11 K wave/s =~ 10^11 HzK
Sun is much hotter at the center (15 million degrees Kelvin) that at its nominal surface (5870 degrees Kelvin, at the photosphere)
The cosmic microwave background spectrum was measured with a precision
of 0.03% and it fit precisely with a black body of temperature
2.726 K.
What _isnt_ order 10^2 K? 32 to 316 K!
Highest recorded weather temp Al'Aziziyah, Libya 57.7 C,
http://www.iinet.net.au/~jacob/worldtp.html[link broken]
300K room landmark. ST.
superfluid helium-3: Superfluid is neat. Superfluid flows without friction. Superfluid inside an open container flows up the walls, over them and out. Superfluid flows through small cracks, and conducts heat remarkably well. http://www.msc.cornell.edu/~biggar/lt/lt.html[link broken]
Earth interior: http://earth.agu.org/revgeophys/duffy01/duffy01.html
4.8e-21 J/molecule at 273K
History:
2003-Feb-03 Flagged 4 broken links.
1998.Sep.15 Added nuclear boiling
1998.Jun.13 Begun.
