On 1/2/10 2:25 PM, oriel36 wrote:
On Jan 2, 7:38 pm, Sam wrote:
On 1/2/10 12:04 PM, oriel36 wrote:

The equatorial region of Venus rotates at 6.5 km per hour while the
Earth's equatorial region rotates 1669.8 km per hour and a full
40,075 km rotation in 24 hours.

A much more meaningful way to relate rotations, is in terms
of angular velocity. Or State the 360 rotation in earth days.


Any first year student of physics learns to measure rotation in
terms of rotational velocity.


Unless you really want to play games at a time when the horrific
situation has arisen insofar as our race now believes it can control
global temperature within a certain range (remember the lesson of the
Danish King Canute) for behind it all or at its core is this
intransigence which refuses to acknowledge that 15 degrees at the
Equator represents 1669.8 km and the rotation of the Earth through 15
degrees represents 1669.8 km per hour just as the slow 6.5 km per hour
rotation rate of Venus, a planet of similar size to the Earth, takes
243 days to rotate 360 degrees whereas the Earth takes just 24 hours
to rotate through its 40,075 km circumference.Turn a globe 15 degrees/
1669.8 km and you will eventually develop a distinct antipathy towards
'sidereal time' reasoning.


For the Earth, the angular velocity is 0.72921158553 10^-4 rad/s.
For the Earth, one rotation takes 0.997269566 days

For Venus, it is 2.99244922 10^-7 rad/s
For Venus, one rotation takes 243.0185 days

With the information of different latitudinal speeds I go on to
explain why twilight periods vary with latitude and the outlines of
planetary dynamics as the rotation of the viscous
interior,specifically the molten material in contact with the
crust,does not rotate as a single unit but in differential rotation
bands.

None of you stand a chance of explaining crustal evolution and motion
off the entire length of the Mid Atlantic Ridge with 'convection
cells' when differential rotation leaves its signature on the surface
crust in terms of orientation,fracture zones and symmetrical
generation of crust due to the lag/advance mechanism indicative of
rotational shear bands.

Venus does not have a spherical deviation worth considering or
tectonic activity while the Earth has both and much of this is
directly related to planetary rotation and maximum equatorial
speed,the great shame is not that differential rotation in the Earth's
interior is not accepted as a mechanism but even the possibility of
discussing the intimate link between the rotational dynamics of the
interior with surface crustal dynamics is out of bounds because people
refuse to accept the basic fact that the Earth rotates through 1669.8
km per hour at the equator,something that can be validated immediately
using a normal world globe -

http://upload.wikimedia.org/wikipedi.../GEO_Globe.jpg

The tilt of that globe in direct sunlight can explain the
observed seasons once you realize that orientation of the tilt
with respect to the sun changes through one complete cycle every
265.25 days or so.


Now that the advantage of anonymous consensus has disappeared due to
the recent fraud involving climate,actual climate and geological
studies can commence for those who actually like these topics,the
difference is that now a closer bond is drawn between planetary
dynamics,planetary comparisons and what have you in expressing their
terrestrial effects.The correlation between planetary shape,rotational
speeds and geological effects is of course in its infancy just as
global climate is now only emerging in its true form from behind the
spectacle of a minor atmospheric gas,it only takes a bit of effort to
move from one side to the other and drop these unintelligent games
that you know I have no interest in.