Recent content by Unlockitall

K, thanks. I guess I was confusing perspectives.

O.k., thanks. I knew there had to be something weird going on.

O.k., correct me if I'm wrong because I'm new to the concepts of relativity and other stuff, but I have a question. General Relativity says that, in the vacuum of space, there is no way to tell whether a downward force is being caused by gravity or constant acelleration, right? Well, I thought...

I just finished reading A Briefer History of Time, and somehow, for the most part, it made sense to me. Some questions did come up in my mind, though, so I figured I'd ask for some help. The biggest question I have is on force-carrying particles. In the book it says It then goes on to describe...

Im not trying to get any particular pressure. All I am trying to find is the least amount needed to force the water through and up.

I was wondering if someone could tell me a formula for how much force is required to push water through a hose. I am going to try to figure out how much force is needed to push water vertically 40 cm through 5/16 inch tubing.