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A New Spin (Comments)
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Another possible scenario for the changes to the earth's spin and axis of rotation
Consequently to the disastrous earthquake that struck Japan, it was determined that the
earth's spin slowed somewhat and the axis of rotation also shifted slightly.
While these changes are very minute to the point of being almost a mere theoretical in nature, they are definitely measurable and, of coarse, permanent.
That being the case, was it possible for a large enough motion of tectonic plates, to cause changes to the
earth's spin and
axis of rotation which end the dinosaurs era?
----- Richard E. J. Driskill's comments ------
The Earth is presently 24,901.55 miles in circumference, at the equator, at
sea level, and it's along that point it spins (rotates) at a rate of
1,040.4547 mph (mean speed), which is judged over a period of 23 hours, 56 minutes, and
4.09 seconds. If your claim of an increase in spin of 17 fold for the period
is extrapolated, that would mean the earth would have been spinning at the
equator at 17,687.729 miles per hour (all things being equal). In both cases the
poles, as pin points (minus any relative wobble) would experience a 0 mile per
hour spin rate. Additionally, the rotation rate would deliver periods of
light and darkness, that if evenly divided would span roughly 42 minutes and 21
seconds each. I fear this would play havoc on the photosynthesis process of most
plants (past and present), and you might want to check this out with a
botanical scientist. Due to the near constant twilight-like condition of the planet,
I would also extend that the lack of relevant cycles of heating and cooling
would have impacted weather conditions to the point that the planet would be
more arid than lush.
And now we come to something called escape velocity. The present escape
velocity for the Earth is 11.2 km/sec (25,053.69 miles per hour) and is the same
for a molecule of hydrogen or a huge dinosaur. Your aforementioned spin rate of
old would have induced a condition wherein 70.599% of the escape velocity at
the time (all things being equal) would have been negated. This would be in
direct reference to your comment on centrifugal effects upon weight, and by
extension, its interaction upon animal size viability. In fact it would impact
much, much more.
The atmospheric pressure (and all that that implies) of the planet would have
been catastrophically reduced (ballooning outward) to the point that ALL
cellular growth and design between the 2 periods in time would surely be quite
noticeable, including the internal bone matrix of long dead dinosaurs.
To the best of my knowledge, this has not been discovered to be the case.
[Author's note: actually it has been, albeit, somewhat indirectly and in the growth
of tree-rings instead. You can look it up
This leads me to conclude, that although your hypothesis is initially
interesting, it's unsupported in relative facts to the degree it becomes
implausible. BUT... I must say I am impressed with your thinking process. Never stop
banging at the door. ;)
Mr. Richard E. J. Driskill
Electromagnetic Spectrum Authority (retired)
----- Author's comments on Richard E. J. Driskill's comments -----
REJD's observation that the
atmospheric pressure would have been reduced as a
result of the reduced weight, brings to light an interesting point that could,
by the way, explain why the dinosaurs remained cold blooded throughout their reign.
With hundreds of millions years of evolution under their belt, a question may
well be asked how come they never evolved from the 'primitive' status of being cold blooded
to the more 'progressive' state of being warm blooded. After all, warm blooded animals
do not depend for their function on the temperature of their environment and are able to
better cope with changes in temperature.
The extremely low barometric pressureat at the equator must have resulted in tremendous winds
blowing from the high pressure points at the poles and pushed on by the low-pressure
gradient throughout, all the way to the equator of that time. It's similar to your
occasional local weather picture, with centers of high and low pressure, but with two
big differences: the winds were permanent and must have been tremendously strong.
(Well, don't look at me. Didn't I tell you it was a
strange world indeed?)
How strong were these winds is yet to be determined and such terms as 'extremely'
and 'tremendous' may turn out to be huge understatements. It would also remain to be
explained how the plants and animals managed to survive under such
a permanent storm.
Similar to natural convection that distributes the heat in a heated living-room (actually,
more like a gigantic forced-air fan) the possible effect of these perpetual winds was
to even-out the temperature throughout the globe so as to make it
practically the same at all latitudes. It probably was the same
day and night and throughout the year's seasons.
It's yet to be determined what was this temperature.
(Likely, a comfortable midpoint somewhere
between the temperature in Hell and that in Heaven.)
"I did-it m---y way"
With such fixed temperature why bother to become warm blooded? A cold blooded creature is
by far more efficient from the standpoint of energy and food requirements. Animals
such as crocodiles and snakes are known to do with a single meal per several months since they
don't have an internal furnace requiring a constant feeding of fuel.
So, why didn't the dinosaurs become warm blooded? There was simply no need for them to do so.
But the saga of the winds doesn't just end there...
i. 'What is this?'
ii. --The short answer:
iii. --The long answer:
iv. For the impatient:
v. 'What is next then?'
bigger they are ...
there a limit to growth?
convinced yet? What does rate have to do with it?
aren't any such big animals alive today?
then, made it possible for them to take their place in the earth's
But aren't weight and size one and the same?
we talking change in gravity, then?
is centrifugal force and how could it affect the weight?
is it that made earth's spin to slow down?
10. Where is the proof?
11. What is there
left to do?
evidence from independent sources.