4 ms·

Physicists are so sure that the theory of gravity is true, but to what extent has this been verified? Have they seen the gravity particle yet?

• geomark 7y ago
  Isn't the most useful model just the formla for the force of gravity? Sure there is lots of interest in understanding an underlying mechanism. But a useful model abstracts that away so you can predict behaviors.
  • x220 7y ago
    Exactly, that's the point I'm trying to make.