Gravity is what keeps the Earth and the other planets in the solar system in orbit (the curved path of an object in outer space) around the Sun. Gravity also maintains the Moon in orbit around Earth.
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| Gravity by George Gamow "A distinguished physicist and teacher, George Gamow also possessed a special gift for making the intricacies of science accessible to a wide audience. In Gravity, he takes an enlightening look at three of the towering figures of science who unlocked many of the mysteries behind the laws of physics..." See more detail |
- Citation:
http://www.sciencekids.co.nz/sciencefacts/gravity.html
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