Ok so I'm reading up on some physical (no that's probably not the right word, enlighten me!) phenomenas in this case the tides. So as far as I've understood the water on the surface towards the moon is affected both by earth's gravity (which is bigger) and the moon's, and therefore positions itself in between them (a bit above earth's surface). What I don't understand is the similar occurance at the surface away from the moon where a similar high tide is caused. From the explanation I could get of the web I got that there is a centrifugal force acting outwards from the earth's center which is bigger than the moon's gravity and therefore there is a net force acting out from earth's center gathering the water. I can't grasp how the tides are supposed to be similar (which the article states, they are equal) since the centrifugal force should be added to the moon's gravity on one side and subtracted on the other. Next, what is a centrifugal force, we recently spent 2 lessons discarding our believes that a person in a loop (rollercoaster) is effected by an outward force. Now I am being told that the earth is experiencing an outward force? The article's explanation was. If you look at it in a frame of reference where the earth moves naturally around the moon without an inward net force (uuhh what?) a net force would be outwards coming from the counterforce on the centripetal force, newton's third law. (This probably doesn't make any sense but you might understand what I'm trying to say). Either way I don't get it, could someone explain?