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3/10/2015 1:44:21 AM
2
Gravity is a law. But a theory does mean proven to be true, but not for sure 100% true. Evolution still has that missing link
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Not quite. Gravity is a Law. We know that it exists, and a baseline constant. We also know that wherever in the universe we go, there will be some gravity. Evolution is a theory. We know it happened. We don't have a great deal more solid than that.
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Gravity is both a theory and a law. Newton wrote about the law of gravity (i.e. N=mg, etc.), Einstein wrote about the theory of gravity (i.e. gravitons, the Lorentz factor, etc.). A law is describing a natural phenomenon, and a theory is explaining that phenomenon.
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[quote]As one of my teachers put it "A Law means we know how, why....."[/quote] This is what also makes it a theory. We can predict gravity all day long but ask a physicist what it is? They won't know nobody knows just what gravity " is".
