Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Gravity ball
Cosmos magazine ^ | October 30, 2007 | Richard A. Lovett

Posted on 11/06/2007 8:48:14 AM PST by SunkenCiv

The red spots represent places where the Earth's gravity is unusually strong. The blue ones are where it's weak. Not that the force of gravity itself varies. Rather, it's an indication that the Earth's mass distribution isn't quite uniform. Mountain-building in South America and the Himalayas produces dense, red zones; elsewhere, tectonic movements produce thin, blue, ones... Some changes are geological. For example, much of Canada, centred around Hudson Bay, is undergoing "postglacial rebound" as the continental crust slowly rises after being depressed, thousands of years ago, by the weight of Ice Age glaciers. Other changes are related to redistributions of water. Melting ice sheets, heavy rains, changes in soil moisture: all of these shift around enough water to make discernable changes in the Earth's gravitational field. Some of these are signs of global warming. Others provide early warning of floods, crop failures, and aquifer depletion in remote corners of the globe. "Water has weight," says project scientist Michael Watkins of NASA's Jet Propulsion Laboratory, in Pasadena, California. "It has gravitational attraction, and GRACE can detect it."

(Excerpt) Read more at cosmosmagazine.com ...


TOPICS: Astronomy; Science
KEYWORDS: catastrophism
Navigation: use the links below to view more comments.
first previous 1-2021-26 last
To: CT-Freeper
►►►What weighs more...a pound of water, a pound of feathers, or a pound of rocks◄◄◄

The weight of one pound of rocks would vary with the type of rock (sandstone vs granite). However one gallon of water weighs 8.34 lbs. One gallon of gasoline weighs 6.152 lbs. One gallon of milk weighs 8.5 lbs.
21 posted on 11/06/2007 1:46:50 PM PST by NCC-1701 (PUT AN END TO ORGANIZED CRIME. ABOLISH THE I.R.S.)
[ Post Reply | Private Reply | To 3 | View Replies]

To: SunkenCiv

“Some of these are signs of global warming.”

Stopped reading right there because there is of course no way to prove this. I have no patience with these people anymore.


22 posted on 11/06/2007 5:49:52 PM PST by JSteff
[ Post Reply | Private Reply | To 1 | View Replies]

To: NCC-1701
"The weight of one pound of rocks would vary with the type of rock (sandstone vs granite)."

Indeed, absent the qualifier, there is a difference "if" one is refering to "fluid ounce" which is a measure of volume.

A few decades ago, especially in the food industry, the distinction was not made and the industry mixed their measurement to suit price conveniences. A can of size 15 1/2 fluid ounces, say of Pringles potatoe chips, would be compared to 16 dry ounces of Lays potatoe chips in a bag in cents/ounce.

yitbos

23 posted on 11/07/2007 1:48:43 AM PST by bruinbirdman ("Those who control language control minds." -- Ayn Rand)
[ Post Reply | Private Reply | To 21 | View Replies]

To: NCC-1701
The weight of one pound of rocks would vary with the type of rock (sandstone vs granite).
That's difficult to prove.
24 posted on 11/07/2007 8:13:52 AM PST by SunkenCiv (Profile updated Monday, October 22, 2007. https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | To 21 | View Replies]

To: Berosus

No surprise there, after all, “The East is Red”. ;’)


25 posted on 11/07/2007 8:14:58 AM PST by SunkenCiv (Profile updated Monday, October 22, 2007. https://secure.freerepublic.com/donate/)
[ Post Reply | Private Reply | To 19 | View Replies]

To: RockinRight

Where there is a gravity gradient, there must fe a flow of matter.

Even on a slightly sloped surface, water and marbles roll down hill.


26 posted on 11/07/2007 8:19:42 AM PST by bert (K.E. N.P. +12 . Moveon is not us...... Moveon is the enemy)
[ Post Reply | Private Reply | To 2 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-26 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson