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I don't understand how physicists arrive at equations that describe things.

Even Newton's equations, which look very simple, I don't see how he came up with them.

I can't imagine dropping a ball, observing it and then making a formula. I assume that took a lot of measurements, etc, and I know the units probably helped. When I am working physics problems and forget my equations I can write a unit style equation and help me remember it, but he had to damn invent the units too (ie, force.)

And those were so simple. I saw some program on Discovery channel and this physics guy was looking through an old math book and saw a formula and he realized that forumla perfectly described whatever he was looking to describe. How in the hell? :)

An enamored biologist,

Aychamo

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# How do physicists do it?

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