Non-Newtonian gravitational forces and the Greenland ice-sheet experiment
The results of an experiment to test Newton's Inverse-Square Law of Gravitation in the Greenland ice-cap were announced recently. The anomalous gravity gradient which was found can be explained either by an unrecognized anomaly in the density of the rocks under the ice sheet, or by the existenc...
| Main Authors: | , , |
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| Language: | unknown |
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2021
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| Subjects: | |
| Online Access: | http://www.osti.gov/servlets/purl/6212238 https://www.osti.gov/biblio/6212238 |
| Summary: | The results of an experiment to test Newton's Inverse-Square Law of Gravitation in the Greenland ice-cap were announced recently. The anomalous gravity gradient which was found can be explained either by an unrecognized anomaly in the density of the rocks under the ice sheet, or by the existence of a non-Newtonian component of the gravitational force. Here we focus on the latter possibility, and find that the force would be attractive, with a strength between about 2.4% and 3.5% that of Newtonian gravity, and a range between about 225 m and 5.4 km. 11 refs. |
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