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What is keeping the moon from traveling its orbit around the Earth?
Is that the same force that pulled the apple to the ground?
I have a theory!
Example, the moon and earth tugged on eachother, soon in space these tugs cancel out.
As a result the moon was trapped in its orbit around Earth. Facing, an apple had a small mass and was very close to Earth, so gravity dragged it to the ground.
All physical objects, had a force of attraction between them. The strength of the force depended on the masses of the objects and the distance between them.
In 1687, Newton published a book known as the Principia (Principles). The book presented the law of gravity. It also described three laws of motion. Newton's laws provided a physical explanation for what earlier scientists had discovered.
This is my book!
For example, Newton's laws explained why, just like how gravity kept the moon traveling around Earth, it kept the planets traveling around the sun.
Now, my laws has dramatically changed the way people see the universe.
My wonderful theory was correct!
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