Recent content by metrictensor

There is nothing obeying anything. We attempt to draw a certain level of abstraction based upon observations and call these patterns laws.

very interesting question about traveling through time affecting KE. I'll have to think about it.

It may turn out that there is an new theory that explains why the speed of light is the same in all IRF's. This would lead to the same type of question to that theory's foundations. If you understand this you understand the nature of science. It causes one to ask what do I mean by 'why' when...

I was thinking the same thing but there are many 4-vector invariants in SR. Energy-momentum, space-time. The classical conservation laws have one specific quantity conservered not a variety.

Time invariance implies conservation of energy. Space invariance implies momentum convervation. What convervation law does the Lorentz invariance imply?

In this case it means changing direction.

suck my balls.

I understand the difference but they are both curvatures. It is only a matter of where you can detect them from that is cause for the difference. Whether intrinsic or extrinsic there is still a curvature. I understand the mathematical difference in terms of embedding and not embedding. It...

GR is only inconsistent in the plank regime if we assume that QM is correct. That is the whole point of this post. Which of the two (most likely) could eventually turn out to be wrong. To me it seems that relativity is move fundamental in this sense than QM. that is, it is something that...

If you are on the top of a hill you can imagine a line going straght off the top parallel to the base of the mountain. As you jump you deviate from this line and your movement is a curved path. If you like Wikipedia check this out http://en.wikipedia.org/wiki/Curvature

Excellent and very helpful post and thanks for the link.

That is not true. Look at Einstein's first paper on SR. On the first page he states essentially what I said. Of course you can formulate the statement in a more concise mathematical form but that doesn't change the meaning. Are you trying to trap me by using Galilean? Believe me, I know...

By RP I mean the laws are physics are the same in all reference frames. Fundamental is a bit harder. If something is fundamental it applies more broadly than in particular cases. For example, the principle of relativity is more fundamental than Newtonian physics because the RP applies to...

I am talking about curvature and how it is defined.

The point is that you can look at the problem in two ways. Either a constraint on the motion of the object caused by the bead or due to the balance of two forces. The whole point of GR is that there is a wire. That Newton's explanation does not hold up to the principles of relativity.