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Science

Researchers Develop the Most Detailed Map of Gravitational Variations Ever 88

Posted by samzenpus
from the he's-not-heavy dept.
schliz writes "An Australian-German team of researchers has developed the most detailed map of gravitational variations ever, using satellite data, gravitational readings and small-scale topographical models. They say the data will help civil engineers and miners, and will be available for free online. Gravitational fields vary because the Earth isn't perfectly spherical. According to the new map, the field is 0.7% greater near the North Pole (9.83ms-2) than at Peru's Nevado Huascaran summit (9.76ms-2). The difference is 40% more than previously expected."
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Researchers Develop the Most Detailed Map of Gravitational Variations Ever

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  • by RichMan (8097) on Monday September 16, 2013 @09:05AM (#44862851)

    Grocery stores "weigh" everything in grams. Grams might be mass but the general populace uses mass interchangeably with weight.

    Hmm, can we use the map to get global scale calibrations to a normal mass. It would seem to be unfair that the same amount of material might cost more or less in different places due to scale errors that measure weight and use it blindly as mass.

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