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From TB Forum.. 8.28.07

Based on radio astronomy observations conducted between April 29, 2003 and
June 10, 2004 (well over a year ) by the Cassini Radio and Plasma Wave
Science Instrument, NASA has just announced (June 28, 2004) a new period
for Saturns internal rotation: 10 hours, 45 minutes, 45 seconds (with a
formal error of plus or minus 36 seconds ).

The major surprise is that this figure is significantly longer than a
similarly-derived radio period determined by the Planetary Radio Astronomy
(PRA) experiment on the two Voyager spacecraft, which flew by Saturn only
nine months apart almost a quarter century ago. That period was 10 hours,
39 minutes, 24 seconds with a formal error of plus or minus 7 seconds.

Among the major changes weve been watching in the Saturn system recently,
this belated new admission less than two days away from Cassinis Orbital
Insertion around Saturn must rank as the most significant change. Altering
the day length of a major planet in this case, of the second most massive
planet in the solar system -- even by six minutes (only about one
percent), is not a trivial change. But, scientists associated with the
Cassini Project seem totally baffled by this alteration ... which may
explain some of the hesitancy in its announcement.

University of Iowa Space Physicist Don Gurnett (below), head of the team
that is analyzing these radio emissions, said June 28th: Although Saturn's
radio rotation period has clearly shifted by a substantial amount over the
24 years since the Voyager measurements, I don't think any of us could
conceive of any process that would cause the rotation of the entire planet
to actually slow down. So it appears that there is some kind of slippage
between the deepinterior of the planet and the magnetic field, which
controls the charged particles responsible for the radio emission[emphasis
added]."

The key here is his revealing comment, I dont think any of us could
conceive of any process that would cause the rotation of an entire planet
to slow down . Obviously, Gurnett is forgetting about this one the Earth.

Since 1972, there have been two timekeeping methods for keeping track of
Earths day the usual one, astronomically measuring the Earths rotation
relative to distant background objects in the Universe (stars, quasars,
radio galaxies, etc.); and a newer one, via the very precise energy
exchanges occurring within cesium and hydrogen atoms, so-called atomic
clocks.

But, soon after atomic clocks were compared with Earths astronomical
rotation, it was noticed that the Earth was -- mysteriously slowing down .

According to the US Naval Observatory: "In order to keep the cumulative
difference in UT1-UTC less than 0.9 seconds), a leap second is added to
the atomic time to decrease the difference between the two. This leap
second can be either positive or negative depending on the Earth's
rotation. Since the first leap second in 1972, all leap seconds have been
positive (click here for a list of all announced leap seconds). This
reflects the general slowing trend of the Earth due to tidal braking
[emphasis added].

Since 1972, a total of over 30 leap seconds have been added to Earths day
length (!) an enormous slowing of the Earths rotation in such a brief
period of time. Obviously, Don Gurnett simply did not remember this
fundamental fact of life on Earth or, he wouldnt have made the statement:
I dont think any of us could conceive of any process that would cause the
rotation of an entire planet to slow down .

The Hyperdimensional implications for this new discovery are profound as
are those for the Cassini Mission.

* * *

The odds that Cassini will survive its ring plane crossings despite
the pessimistic assessment we published earlier have suddenly
increased dramatically ... with this puzzling announcement.

The fact that JPL admits it has known of this rotational change since
1997 (which is when Cassini launched) is very telling. For, it now
explains the formerly unexplainable: why NASA would deliberately send
Cassini on a trajectory to enter Saturn orbit duplicating the
frightening experience of Voyager 2 that night in 1981. The answer is:
Saturns ring environment has actually become more benign making those
unique close-up observations as Cassini flies just above the Rings
actually possible (below) if barely.

Heres why.

Unlike the Earth (whose rotational anomalies are blamed on the tides
caused by its one large satellite, the Moon), Saturns moons can have
no part in this new rotational puzzle being much too tiny, and much
too far way, to have any perceptible slowing gravitational effects on
Saturn. In addition, unmentioned in the latest JPL announcement, is a
reiteration of the other major rotational puzzle regarding Saturn,
also announced almost exactly one year ago this June: the major
decrease in the speed of its equatorial winds .

From these two (and we believe, related) rotational anomalies, it is
clear at least, its clear to us -- that some fundamental aspect of
planetary rotation and associated angular momentum must be involved
with Saturns mysterious radio slow down despite Dr. Gurnetts opinion.
Saturn has INDEED slowed in its rotation in only 24 years ... as
Hyperdimensional Theory, given all the other documented changes in the
Saturn system, would demand!

What this means for Cassini is just this: according to an empirical
relationship first published by Arthur Schuster in the early 20th
Century (1912), known as Schusters Law, an objects magnetic field is
directly related to its total angular momentum (spin energy). This
relationship has been observed to hold from objects across an enormous
range of masses and rotations from stars like the Sun to planets to
the Milky Way Galaxy itself!

If Saturns spin rate in those deep, metallic layers where Saturns
magnetic field is initially created has indeed slowed then Saturns
associated magnetic field (from Schusters Law) will have decreased as
well . This, in turn, will have lowered the Faraday voltage created by
the revolution of the ring particles (and ionized ring plasma) around
the planet. The result will be a decrease and maybe a dramatic
decrease -- in the acceleration of the tiny, ice dust-grains .
This, then, is the real reason now why Saturns spokes have
disappeared.

And thus, present a vastly diminished threat for Cassini as it crosses
the plane of Saturns rings!

If we had had this critical rotational information even a few days
ago, we would have written a very different Cassini article on Saturn,
focusing more on the long-term Hyperdimensional observations that
Cassini can make ... if it survives its double ring plane crossings.
But, for some reason, JPL decided to withhold this fascinating

information including the publication of the original French Saturn
rotational anomaly observations in 1997, in an obscure Austrian
science journal (!) -- until just hours before Cassini made the
plunge.

The (apparently) delicate electrical conditions required to levitate
trillions of these tiny particles above the rings and then accelerate
them both outward into space and inward into Saturn, have so changed
that in the Cassini approach images, they are now completely missing.
If this new analysis is accurate, and Cassini does survive its
perilous passage through the ring plane then what it will observe and
relay back to Earth in those critical four hours will be the subject
of our next Cassini update. The continuing 24-year mystery of
The Thing in the Rings .