Changes in the "Earth's rotation?

Mon Apr 25, 2011 7:27 pm » by **Freeyourmindnow**

The March 11, magnitude 9.0 earthquake in Japan may have shortened the length of each Earth day and shifted its axis.

Using a United States Geological Survey estimate for how the fault responsible for the earthquake slipped, research scientist Richard Gross of NASA's Jet Propulsion Laboratory, Pasadena, Calif., applied a complex model to perform a preliminary theoretical calculation of how the Japan earthquake-the fifth largest since 1900-affected Earth's rotation.

His calculations indicate that by changing the distribution of Earth's mass, the Japanese earthquake should have caused Earth to rotate a bit faster, shortening the length of the day by about 1.8 microseconds (a microsecond is one millionth of a second). There are about 86,400 seconds (86 billion microseconds) in a day, so the impact of the earthquake is quite small.

The calculations also show the Japan quake should have shifted the position of Earth's figure axis (the axis about which Earth's mass is balanced) by about 6.5 inches, towards 133 degrees east longitude.

The Earth's figure axis is not the same as its north-south axis in space, which it spins around once every day at a speed of about 1,000 mph. The figure axis is the axis around which the Earth's mass is balanced.

In comparison, following last year's magnitude 8.8 earthquake in Chile, Gross estimated the Chile quake should have shortened the length of day by about 1.26 microseconds and shifted Earth's figure axis by about 3 inches.

A similar calculation performed after the 2004 magnitude 9.1 Sumatran earthquake revealed it should have shortened the length of day by 6.8 microseconds and shifted Earth's figure axis by about 7 centimeters, or 2.76 inches. How an individual earthquake affects Earth's rotation depends on its size (magnitude), location and the details of how the fault slipped.
http://www.china.org.cn/environment/201 ... 153167.htm

what if they trying to move the earth? change it's rotation for some reason?

Mon Apr 25, 2011 7:55 pm » by **Freeyourmindnow**

this is very interesting

this is funny

Mon Apr 25, 2011 8:29 pm » by **Lombozo**

So each night when I go to bed I'm getting fucked out of a millionth of a second? That's bullshit!

Mon Apr 25, 2011 8:32 pm » by **Freeyourmindnow**

lombozo wrote:So each night when I go to bed I'm getting fucked out of a millionth of a second? That's bullshit!

everything has an effect on everything. did you read my question?