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i have searched and searched yet i can not find it.....

maybe you can help


(yes ......YOU!!!!)

2007-12-05 19:24:52 · 6 answers · asked by Anonymous in Science & Mathematics Physics

6 answers

So far, Einstein's Theories of Special and General Relativity are two of the most successful theories of our times, and they have passed every experimental tests that we have devised so far to accuracies within 0.05%.

However, General Relativity is inconsistent with Quantum Mechanics. Furthermore, the nature of the Gravitational Singularity remains an important open question in General Relativity. For this reason, we know for a fact that General Relativity can NOT be a TRUE theory of gravity, but only an approximation thta works well in large spatial and time scales.

Currently physicists are working on a Quantum Theory of Gravity that incorporates both GR and QM together as well as unify all fundamental forces of nature. Examples are Superstring Theory and Quantum Loop Gravity.

BTW, the discussion about the "Cosmological Constant" is NOT an error related to the Theory of General Relativity, but an error related to one of the solutions to the equations of General Relativity. This means that it doesn't matter what values of the Cosmological Constant you choose, the theory itself remains valid. An example would be to choose a different value for G, Newton's Gravitational Constant. Newton's Theory would still be valid, but your calculations using newton's equations wouldn't give you the proper numerical results.

2007-12-08 08:42:35 · answer #1 · answered by PhysicsDude 7 · 2 0

There are no errors in Relativity, except that we know that it does not apply on extremely small scales, like the size of an atom.

This is, however, for whatever reason (probably the popularity of Einstein in the popular mind), a favorite area for crackpots with an 8th grade education who think they know better than all the physicists in the world to claim that they have proven it wrong.

Which, by the way, cannot be done theoretically--- it is proven that Relativity is logically self--consistent. Any error in Relativity must therefore be an error of prediction, i.e. that it predicts observations that are not correct when you go look at the universe. So far, no such thing has ever been observed. Nobel Prize to whomever can do that.

2007-12-05 22:26:22 · answer #2 · answered by ZikZak 6 · 1 0

No errors have been found in the special theory, but the General Theory has been modified twice. The modifications are minor, and do not affect the overall validity of the theory. The first modification was made by Einstein himself, when it was discovered (by other mathemeticians) that the solution of the equations for uniformly distributed matter (like the universe) was unstable--space had to expand or contract, but could not remain constant in size. Einstein added a stabilizing factor (the "cosmological constant") in order to produce a stable solution. Later, when it was discovered that the universe is expanding, Einstein removed what he considered an artificial addition to the elegant equations, calling it "the biggest blunder of my life."

Recently, however, more detailed observations of the universe and how it is expanding, indicate that that constant may have to be put back in, as it could represent the "dark energy" in the universe.

2007-12-05 19:32:51 · answer #3 · answered by gp4rts 7 · 4 0

What errors?

The cosmological constant isn't really an error in the theory. It's just a free parameter. Maybe it's value is identically one. Maybe it isn't as Einstein originally guessed (and now some folks today are guessing).

GR is inconsistent at some level with quantum field theory. But we really can't say just right now which one will have to change or mayber both.

2007-12-05 19:28:52 · answer #4 · answered by Anonymous · 4 2

Einsteins theory of relativity applies to everything on a normal basis. However, the error occurs when it is applied to something very large, universes and etc, or something very small, quarks and etc.

2007-12-05 19:31:15 · answer #5 · answered by Legacy 2 · 0 3

I think the biggest so called error is the theory itself. When something is not the same normal range, such as extremely large, or extremely small things like quarks. Or extremely dense objects like black holes. Than when dealing with fast particles like the objects, or waves at or near the speed of light.
The biggest problem with the relativity is that when or reference frame changes all that is perceived is changed.

2007-12-05 19:37:58 · answer #6 · answered by neon2054 3 · 2 5

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