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News: USA showered by a watery comet ~11,000 years ago, ending the Golden Age of man in America
http://dsc.discovery.com/news/briefs/20050926/mammoth_02.html
 
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Our Sleeping Planet


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Author Topic: Our Sleeping Planet  (Read 154 times)
Keith Ranville
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« on: January 22, 2010, 03:27:03 pm »



World News

End of Days, 2012 what could happen 2012, 21, 12 could the earth self destruct? this planet is having more than usual natural disasters lately? The mayan calendar ends in 2012? is earth on a cosmic new cycle or a ending? There is so many questions to be answered.

A theory That I believe that may happen to planet earth in time and not necessary on 2012, is that this planet may slow or speed up or half shift being europe and the americas as north and south poles. My theory goes back to when north america and europe was one continent. Its the end of the continental drift over the millenniums that may cause earth to re-course itself?

The continental drift can go only so far around earth, earths gravitation pull will only allow the two continents to drift par to opposite ends of the earth of each other. This may begin a magnet effect between the large two land masses; like a electric motor with two magnets twirling a turbine. I don't think its possible that the two continents will re-connect all the way around earth-back to each other, due to gravity?

When this happens to the western and eastern continents this will be a end of a earths cycle? We may be just getting into this window when it may take place in our two hemispheres?

                                                                                                                      -Keith Ranville
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Keith Ranville
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« Reply #1 on: March 02, 2010, 07:35:35 pm »



Quake shortened Earth's days

By Simon Lauder

Scientists say the Chilean earthquake was strong enough shift the Earth on its axis and make each day a fraction shorter.

Early analysis by NASA shows the axis of the Earth should have moved by about eight centimetres after the Chile earthquake.

But Dr David Kerridge from the British Geological Survey says only experts will notice the change.

"It's nothing that's going to affect anybody in daily life, but it's something that just follows from the daily physics of how rotating objects behave," he said.

He says the quake was strong enough to alter the distribution of the earth's mass and therefore speed up the rotation of the planet.

"The Oceanic plates and Nazca plate was pushing and has been thrust down underneath the South American plate. So the South American plate would have been flexed downwards," he said.

"The probability is that when the flexing downwards is released and the South American plate would have moved up, so that would have moved mass further away from the rotation axis and that would be the cause of the change."

He says people can understand how the shift speeds up the earth's rotation if you imagine an ice skater spinning on an axis that runs from her head to her toes.

"When she puts her arms out, then she rotates quite slowly. When she brings her arms in, she begins to rotate much faster," he said.

"That's because she is decreasing her moment of inertia by bringing in her arms, by bringing the mass closer to the rotation axis. But angular momentum stays the same, which means rotation rate increases.

"Here it's the same kind of effect, but a very, very tiny one given the huge mass of the earth and the very small changes that have been made at the surface."

NASA geophysicist Richard Gross has told the Bloomberg newsagency the quake sped up the rotation of the earth enough to shorten the day by an estimated 1.26 millionths of a second.

The same model showed the 2004 Sumatra quake, which generated the Indian Ocean tsunami, should have shortened each day by 6.8 microseconds.
http://www.abc.net.au/news/stories/2010/03/03/2835090.htm?section=justin
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Keith Ranville
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« Reply #2 on: March 02, 2010, 07:43:26 pm »



NASA: Chile quake shortened earth's days, bumped planet off axis

By Xeni Jardin at 7:02 PM March 1, 2010

The magnitude 8.8 earthquake that hit Chile over the weekend—killing hundreds, and leaving hundreds of thousands homeless—may have shortened the length of each Earth day, according to JPL research scientist Richard Gross.

    earth.jpg He computed how Earth's rotation should have changed as a result of the Feb. 27 quake. Using a complex model, he and fellow scientists came up with a preliminary calculation that the quake should have shortened the length of an Earth day by about 1.26 microseconds (a microsecond is one millionth of a second).

    Perhaps more impressive is how much the quake shifted Earth's axis. Gross calculates the quake should have moved Earth's figure axis (the axis about which Earth's mass is balanced) by 2.7 milliarcseconds (about 8 centimeters, or 3 inches). Earth's figure axis is not the same as its north-south axis; they are offset by about 10 meters (about 33 feet).

Chilean Quake May Have Shortened Earth Days (NASA.gov)

http://www.boingboing.net/2010/03/01/nasa-chile-quake-sho.html
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