absolute acceleration

[AntonioLao]

A better definition, it is the time derivative of the phase velocity. In electromagnetism, phase velocity is defined as the ratio of square lightspeed over the group velocity, vp = c/vg. Since group velocity never exceeds lightspeed in vacuum, phase velocity is always superluminal. A known fact of physics is that energy and information transmit at the group velocity. But what is it that transmits at the phase velocity? A logical answer is spacetime expansion. The fact is that the universal expansion is observed to accelerate; this more than validated the existence of absolute acceleration. Disregarding dimensional analysis, the product of inertial acceleration and absolute acceleration is unity, ai ▪ aa =1.

[mkirkpatrick]

I think the answer to your question Antonio,"what is it that transmits at the phase velocity"?I would suggest that as there is no such thing as absolute acceleration,then what
is happening is that the ether being the medium and field which permits such activities
to occur is registering a presence,thats all?


regards michael.

[AntonioLao]

what is it that transmits at the phase velocity

The universal expansion is observed to exceed the speed of light and recently it was detected that this expansion is also accelerating.

[theunify]

I will just try to define Group Velocity.

A group is a word defining an order of abstraction from your reality. Define apples falling as a group velocity or define apples being exchanged for dollars as a higher level of thinking. The higher level you achieve the less the group velocity will resemble an absolute velocity. Can you measure the speed of thought? Is it superluminal because it's real, or imaginary?

[theunify]

The universal expansion is observed to exceed the speed of light and recently it was detected that this expansion is also accelerating.

I think you mean the Universal expansion was "calculated" to exceed the speed of light and "observed" to be accelerating.These are two very different statements.

[mkirkpatrick]

I will just try to define Group Velocity.

A group is a word defining an order of abstraction from your reality. Define apples falling as a group velocity or define apples being exchanged for dollars as a higher level of thinking. The higher level you achieve the less the group velocity will resemble an absolute velocity. Can you measure the speed of thought? Is it superluminal because it's real, or imaginary?

No you cannot measure the speed of thought,it arises in ubiquitous response to the creational idea,present within the eternal NOW?


regards michael.

[bottomlander]

I think you mean the Universal expansion was "calculated" to exceed the speed of light and "observed" to be accelerating.These are two very different statements.

I agree with you that Universal Expansion is "calculated".

What is more, for your 2nd part, it seems difficult to have intergalactic acceleration "observed", it is likely to be mathematically calculated under certain assumptions and interpretations.

"observed" is likely to be a fact. Good theories base on facts.
"calculated" under erroneous assumptions or misinterpretations should not be simply taken as a fact.

Big Bang cosmology actually bases on Spacetime mathematics, calculations and Interpretations rather than thru close observations. (close means nearby)

Regards. bottomlander

[purveyor of knowledge]

Wouldn't absolute acceleration for an object also be dependent upon its speed, such that at relatively non-relativistic speeds an object's potential rate of absolute acceleration would have to be much greater than if it were travelling nere the speed of light. In other words, if an object were travelling ininitely close to the speed of light, then even an infinitely small amount of acceleration would count as absolute because at that point any acceleration at all is nerely impossible considering the force it would require?

When combined with QM, this implies a new definition for absolute acceleration. Absolute acceleration is the amount of acceleration that, if sustained for a planck second, assuming no relativistic effects, would abruptly bring an object from it's current speed to the speed of light. This would imply that sending an object faster than the speed of light is not so much a matter of employing infinite energy, as in today's particle accelerators, but a matter of employing a finite amount of energy in an infinitely short amount of time. This would theoretically allow QUANTUM MECHANICAL effects to sidestep GR and allow the object to reach or even exceed the speed of light. In this manner, exceeding the speed of light would be defined as resulting from GREATER than absolute acceleration. In order to consider this possibility of greater than absolute, one must define and include the number 1/0 in our mathematical paradigm, and consider the possibility that space/time is like a circle of infinite diameter, whereby infinity is defined by the perceived speed of light.

[purveyor of knowledge]

You mentioned the expansion and how it is calculated to be greater than lightspeed at far distances, and continually accelerating. Considering this inexorable progression, and what I said in my last post, what do you think will happen Antonio when the universe begins expanding at greater than lightspeed across less than planck distance? Due to the combination of the rules of both QM and GR, do you think space/time at this point will be completely undone in that the arrow of time will totally reverse on itself? This would mathematically be like reaching the point 1/0 on the number line, which is where positive and negative infinity ultimately cross over eachother. In other words, where positive absolute expansion becomes so great that it instantly flips and becomes negative absolute expansion. Anyway, it's just a thought. But it makes a lot of sense when you consider that the incompleteness theorem said that if you were able to understand the complete picture it would appear to you as a contradiction. Then of course you have the axiom of choice, the saving grace, which says that we can choose to view a contradiction as being totally consistent if we want to, sort of an unparadoxical paradox, a choice that we can love or hate, good or evil. But that's another story and I'm gettin ahead of myself. We can talk about applying the axiom of choice to the incompleteness theorem later.

[theunify]

Wouldn't absolute acceleration for an object also be dependent upon its speed, such that at relatively non-relativistic speeds an object's potential rate of absolute acceleration would have to be much greater than if it were travelling nere the speed of light. In other words, if an object were travelling ininitely close to the speed of light, then even an infinitely small amount of acceleration would count as absolute because at that point any acceleration at all is nerely impossible considering the force it would require?

When combined with QM, this implies a new definition for absolute acceleration. Absolute acceleration is the amount of acceleration that, if sustained for a planck second, assuming no relativistic effects, would abruptly bring an object from it's current speed to the speed of light. This would imply that sending an object faster than the speed of light is not so much a matter of employing infinite energy, as in today's particle accelerators, but a matter of employing a finite amount of energy in an infinitely short amount of time. This would theoretically allow QUANTUM MECHANICAL effects to sidestep GR and allow the object to reach or even exceed the speed of light. In this manner, exceeding the speed of light would be defined as resulting from GREATER than absolute acceleration. In order to consider this possibility of greater than absolute, one must define and include the number 1/0 in our mathematical paradigm, and consider the possibility that space/time is like a circle of infinite diameter, whereby infinity is defined by the perceived speed of light.

You mentioned the expansion and how it is calculated to be greater than lightspeed at far distances, and continually accelerating. Considering this inexorable progression, and what I said in my last post, what do you think will happen Antonio when the universe begins expanding at greater than lightspeed across less than planck distance? Due to the combination of the rules of both QM and GR, do you think space/time at this point will be completely undone in that the arrow of time will totally reverse on itself? This would mathematically be like reaching the point 1/0 on the number line, which is where positive and negative infinity ultimately cross over eachother. In other words, where positive absolute expansion becomes so great that it instantly flips and becomes negative absolute expansion. Anyway, it's just a thought. But it makes a lot of sense when you consider that the incompleteness theorem said that if you were able to understand the complete picture it would appear to you as a contradiction. Then of course you have the axiom of choice, the saving grace, which says that we can choose to view a contradiction as being totally consistent if we want to, sort of an unparadoxical paradox, a choice that we can love or hate, good or evil. But that's another story and I'm gettin ahead of myself. We can talk about applying the axiom of choice to the incompleteness theorem later.

Good thing Multi-Quote reveals you have gone off topic, please redirect your activity center back to acceleration, as in a speed which gets greater under stress.