Earth's True Shape Revealed for the First Time


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    Earth's True Shape Revealed for the First Time

    Post  Tezbot on Thu Oct 06, 2011 4:00 pm

    After two years in orbit, the European Space Agency’s (ESA) Gravity field and steady-state Ocean Circulation Explorer (GOCE) is nearing the end of its planned life span in February, producing the most accurate map ever of the so-called geoid -- an Earth-encompassing spirit level and global reference surface. An unused supply of xeon fuel will allow the mission to be extended until at least the end of 2012.

    Markedly different from a simple sphere or ellipsoid, the geoid is the mathematically 'true' shape of Earth. It represents a motionless global ocean but takes into account the effects of the Earth’s rotation, weight difference resulting from the position of mountains and ocean trenches, and uneven mass distribution and density variations in the planet’s interior.

    Pretty good, pretty neat.

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    Re: Earth's True Shape Revealed for the First Time

    Post  Lysser on Thu Feb 23, 2012 10:29 pm

    Whoa! How did I miss this so many months ago? Very cool. It kind of looks like a squished in claymation figure.

    And that's all I've got to say about that.

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