« on: Today at 00:49:41 »
I would like to know how the components of time vs space work in SR. It seems, from where I am at in my knowledge, that the temporal component and the spatial component can swap, aka fabric of spacetime. Sure that's fine if it gives us correct results for what we need to know now, but if it doesn't make sense objectively, then it is only a matter of time before SR/GR gives false answers and paradoxes, which it already has.This really doesnít need scientists from a different universe and it isnít down to special relativity.That each scientist is going to end up with a different description of this universe from using special relativity.Here may be a clearer way to see my issue. Imagine a very simple universe where there only exists object A and an object B. They are on a collision course. Scientist A, (from another dimension) uses object A as a point of reference. But scientist B (from yet a different dimension than scientist A) uses object B as a reference. Each scientist is going to end up with a different description of this universe from using special relativity.So what's your issue?
It was Galileo who first pointed out that if you were in a cabin on a ship you would not be able to tell if the ship was moving, or in which direction unless you had information from outside the room. He concluded that it was reasonable to consider two moving ships as one stationary and the other moving or vise versa and the laws of physics remain the same. For example, if a ship is moving and firing a cannon at a stationary ship, the trajectory of the cannon ball relative to the first ship is exactly the same if the first ship is stationary and the second moving. When we consider this scenario in space where there are no fixed references, it becomes more obvious. It is called Galilean Relativity. Einstein added the effects of the constancy of the speed of light and extended Galileoís principle to Special Relativity.