[42077] in Discussion of MIT-community interests
Find Moving Companies- & get a Mover - Thats right For you
daemon@ATHENA.MIT.EDU (Movers)
Sat May 9 09:11:46 2015
From: "Movers" <Movers@edished.eu>
To: <mit-talk-mtg@charon.mit.edu>
Date: Sat, 9 May 2015 06:11:45 -0700
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<a target="" href="http://www.edished.eu/l/lt1HD9953OU196X/201DD1006HT61778X12C116285397C3518458129" id="subj"> Find Moving Companies- & get a Mover - Thats right For you </a>
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<p align="left">blackening of little cinders which fall into the ashes, in MPHGMWE contrast with the long-continued redness of big lumps. This factor is the relation
between increase of surface and increase of<I>content: surfaces, in similar bodies, increasing as the squares of the</I>dimensions while contents increase 7ea99ed1b6714702bd5343b786c98bee
as their cubes. Hence, on comparing the Earth with Jupiter, whose diameter is about eleven times that of the Earth, it results that while his surface 7ea99ed1b6714702bd5343b786c98bee
is 125 times as great, his content is 1390 times as great. Now even (supposing we hiume like temperatures and like densities) if the only 7ea99ed1b6714702bd5343b786c98bee
effect were that through a given area of surface eleven times more matter had to be cooled in the one case than in the other, there would be a vast 7ea99ed1b6714702bd5343b786c98bee
difference between the times occupied in concentration. But, in virtue of a second NKQ factor, the difference would be [146] much greater than that
consequent on WIMYYPP these geometrical relations. The escape of heat from a cooling 7ea99ed1b6714702bd5343b786c98bee mhi is effected by conduction, or by convection, or by both. in a
solid it is wholly by conduction; in<I>a liquid or gas the chief part</I>is played by convection—by circulating currents which HQIBFTPC continually transpose
the hotter and cooler parts. Now in fluid spheroids—gaseous, or liquid, LLKOB or mixed—increasing size entails an increasing obstacle to cooling, consequent
on the increasing distances to be travelled by the circulating currents. Of course the relation is not a simple one: the velocities of the currents 7ea99ed1b6714702bd5343b786c98bee
will be unlike. It is manifest, however, that in a sphere of eleven times the diameter, the transit of matter from centre to surface and back from 7ea99ed1b6714702bd5343b786c98bee
surface to centre, will take a much longer time; even if its movement is unrestrained. But its movement is, in such 7ea99ed1b6714702bd5343b786c98bee cases as we are FDTNLIMRV considering,
greatly restrained. In a rotating spheroid there come into play retarding forces augmenting with the velocity of rotation. In such a spheroid the WKSG
respective portions of matter (supposing them equal in 7ea99ed1b6714702bd5343b786c98bee their angular velocities round the axis, which they will tend more and more to YTHOJ become as
the density<b>increases), must vary in their absolute velocities according to their distances from the axis; and each portion cannot have its</b>distance OFRRNLHPY
from the axis changed by circulating currents, which it must continually be, without loss SAPWIS or gain 7ea99ed1b6714702bd5343b786c98bee in its quantity of motion: through 7ea99ed1b6714702bd5343b786c98bee the medium of
fluid friction, force must be 7ea99ed1b6714702bd5343b786c98bee expended, now QVHYIBW in increasing its motion and now in retarding its motion. Hence, when the larger spheroid has also 7ea99ed1b6714702bd5343b786c98bee IMRQLL a
higher velocity of rotation, the relative slowness of the circulating currents, and the consequent retardation of cooling, must be much greater XBW </p>
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<p>than is implied by the extra distances to be travelled. And now OGQG observe the correspondence between inference and fact. In the first place, if TEPLD we compare the group of the great planets, Jupiter, Saturn, and
Uranus, with the group of the small planets, Mars, Earth, Venus, and Mercury, [147] we see 7ea99ed1b6714702bd5343b786c98bee that low density goes along with great size and great
velocity of rotation, and that high density goes along with small size and small LOSIWNYS velocity of rotation. In the second place, we are shown this relation .</p>
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