Best Gravity Map Yet Shows a Lumpy, Bumpy Earth
ESA’s GOCE mission has delivered the most accurate model of the ‘geoid’ ever produced. Red corresponds to points with higher gravity, and blue to points with lower gravity. CREDIT: ESA/HPF/DLR |
Take a clay model of Earth and squish it with your fingers, and the result may look similar to the geoid — the latest and best-ever map of our planet’s gravitational field.
to read more go to: http://www.space.com/11849-earth-gravity-map-geoid.html