Drip Bayless
Superstar
@Teedot People in here are berating you because you're attempting to criticize something you don't understand. As the other guy said in here it makes you look like a dumb ass. Science is based on theories. A theory is different from a fact or scientific law because although it may have a great deal of evidence behind it, in the case of gravity, it is very difficult to prove that a phenomenon occurs or behaves the way we predict it to 100% of the time. You insinuated in your first post that we can't measure these quantities because we can't see/interact with them, this is something anyone who has taken an intro to physics class would know is not true. I strongly recommend you begin watching Through the Wormhole with Morgan Freeman. It goes into more detail than Cosmos. And plenty of people answered your question with mathematical methods we use to measure the quantities you stated, you just ignored them.