It may look like a mangled lump of Play-Doh, but this colorful object is actually the most accurate digital model yet of Earth's gravity field, scientists say. Released last week, the gravity map is ...
[UPDATE (April 5, 2011): It turns out some of the descriptions I used below to describe a geoid were not accurate. I refer you to this page at the University of Oklahoma for a good description. I’ve ...
No audio available for this content. This column discusses the results of the National Geodetic Survey (NGS) beta hybrid Geoid18 model and the differences between the beta model and the official ...
A sophisticated satellite of the European Space Agency (ESA) has mapped Earth's gravity with unprecedented precision, helping scientists have clearer understanding of the variation in the ...
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