Image: Universal gravitational mass
Universal_gravitational_mass.PNG (459 × 290 pixels, file size: 89 KB, MIME type: image/png)
Description: An apple experiences gravitational fields directed towards every part of the Earth; however, the sum total of these many fields produces a single powerful gravitational field directed towards the Earth’s center.
Title: Universal gravitational mass
Credit: The Earth seen from Apollo 17 with white background.jpg
Author: The Earth seen from Apollo 17 with white background.jpg: created by NASA derivative work: Unitfreak (talk)
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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