Krugman: Views Differ on Age of Planet

[SeanL]

Originally Posted by Underdog

Newton's LAW of Universal Gravitation is not a theory, it's a fact... Do you know what a theory is?

You don't know what you are talking about. Gravity is also a theory:
http://en.wikipedia.org/wiki/Gravita...of_gravitation

And as your article states, "Newton's law has since been superseded by Einstein's theory of general relativity."