Recent content by TerranIV

I don't know that it is "putting it back on track" to call the OP completely ignorant on GR and QM as you have no idea who I am. I am absolutely not saying that people are "doing it all wrong" I'm saying that GR states that gravity is not a force between masses (can we agree on this part?) and...

You are missing my point that gravity is SECONDARY. I think the issue is that people are confused what "gravity" means. It is not "a distortion of spacetime", it is not the primary interactions in GR, it is "an attractive force between masses (and equivalent energy)." The spacetime distortions...

You must not have read the responses to the questions if you dont think that people are calling gravity a force here so far. If you had read my question you would also know that I'm not asking about it being a force or not, I'm asking about it being an interaction between masses rather than...

I wouldn't think gravitons would "attract" mass and spacetime together. They would do what GR says mass does, i.e. bend spacetime or change the properties of spacetime so that momentum follows curved paths like GR says it does. While gravitation is a force, the "true" and "primary" interaction...

Gravitons would be exchanged between matter particles AND energy particles, which is why I used mass instead. (Another reason why it seems that any real gravitons seem more likely to be eschanging energy and information with some form of a spacetime structure or field, not another mass.) You...

PeroK said: I am asking a question on this forum to understand. Obviously if I knew the answer I wouldn't need to ask the question, right? If the answer is obvious, please answer my question, or allow someone else to answer if you don't know, instead of just telling me to read everything about...

My question is more about why would any theory think gravitons would be exchanged between masses? I thought Einstien is pretty explicit in general relativity in saying that gravity is not a force between masses. Why would any post-General Relativity theory go back to Newton's ideas of gravity...

Demystifier said Right, but my question is why are gravitions formulated as being exchanged between masses? Shouldn't gravitions be exchanging interaction between mass and spacetime (or propagating through spacetime just like photons)?

Einstein showed (via general relativity) that spacetime is curved by mass, mass moves in relation to this curvature, and that gravitation arises as secondary effect. Why then are we looking for quantum gravity as some sort of mass<->mass interaction? Aren't the fundamental interactions better...

##c## DOES have many values. ##c0## has a specific value. It doesn't matter what units you use to describe it. The units used determine the number of them when indicating the value. The change of propagation of the electromagnetic waves in THE vacuum don't change, however if you make a change...

Do you think that something having a larger or smaller value than something else is dependent on units? Do you think permeability of a volume is only determined by e_0? Do you think that e_water = e_0?

Why would you think this? The speed of light does not depend on the fine structure constant. It is based on permittivity and permeability values. Permittivity and permeability have different values depending on the electromagnetic field in the volume of space you are measuring. Free space has...

What "mistaken premises" are you referring to? You agree that light travels at different speeds through volumes with different permittivity or refractive indexes, correct? I.e. c_0 is approx 3E8 m/s, c_water is 2.5E8 m/s, and c_glass is 2E8 m/s.

What are you getting at here? Are you trying to argue that permittivity is not real? This thread is asking if there is some specific reason if the permittivity and permeability of space was lower that the speed of light would also be faster. I don't understand why everyone keeps trying to...

While the number we use is for c is arbitrary, the value is not. You can use meters or kilometers or feet or miles - they all give you different numbers - however the value of c_0 is a very precise and constant speed (as measured by another mass). As far as I know the speed we measure light to...