Speed of Light

Hey Viv Pope,
I just want to comment on one element of your post: Bondi appears to be taking c as the relationship of temporal units of measurement and spatial units of measurement. In other words it tells you how many spatial units (meters) are in the standard temporal unit (1 second).If this is the case, then this is already well known. As cavediver has already pointed out this is implicit in the geometric way of presenting relativity first worked out by Hermann Minkowski.

Sorry for the lack of explanation perhaps the following will help.
In everyday speech and even everyday science, we have two seperate measurements for space and time. Space is measured in meters and time is measured in seconds. However in relativity time and space are supposed to become connected, so they shouldn't really have different units. So you have to ask yourself "How many meters is a second worth?", that is when I sit around for one second how many meters have I moved in the temporal direction.c is basically the constant for that conversion. It says that there are 300,000,000 meters in one second.To give you an idea of what this implies, when I walk one meter to the left in one second, I have moved one meter in space and three hundred million meters in time. Apply this to any type of motion you can think of and you'll see that most things move much more in time than they do in space.Light is special because it moves equally in both. That is, it moves 300,000,000 meters in space for every 300,000,000 meters in time. Or if we convert back into everyday units, 300,000,000 meters in one second. Which is c.

Well to tell the truth it is or isn't significant depending on what you think. Personally I would view it as a interesting fact, it gives you an idea of the size of things like minutes or seconds. Periods of time we think of as short. For example a minute is actually 18 million kilometers, I think it's incredible that I've traveled that far in one direction just by sitting around.However in another way it isn't truly significant. It doesn't lead to any great insight or anything, because to know it you'd have to already know special relativity. So I would say it's an interesting consequence of relativity, not a fundamental insight in and of itself. Yes, they would. I believe (I'm not sure) that Viz Pope is saying that it leads to a more geometrical view of relativity, which he believes is incredible news. However any physicist would say we have had a geometrical view of relativity for (at this point) 102 years.The phrase "a geometrical view of relativity" is a bit vague so let me try to explain that. When Einstein published the first few papers on special relativity, he wrote it as a physical theory. That is to say, he expressed it as relationships between energy and mass and velocities as viewed by different observers. Basically, from a mathematical point of view it looked like Newton's mechanics just with different formulas.However in 1907 Hermann Minkowski (who taught Einstein at university) realised that all of Einstein's special relativity could be rewritten in a much simpler form. He basically showed that all of special relativity followed just by assuming that time and space formed one big "thing" called spacetime and that spacetime had a specific shape or geometry. Hence everything in Einstein's theory was just a consequence of this new geometry.This is the way physicists view special relativity today. In fact you have to, because you need to see that special relativity is really about the geometry of spacetime in order to get to general relativity.

Okay, I'm not really understanding any of this.
Could you, in one or two lines, list one difference between what you are saying and standard relativity?
Currently I see no difference between what you are saying and what Minkowski discovered, unless Percy is right and you're saying "that light doesn't travel from our perspective, either".Please a simple paragraph summing up one little component of what you're proposing would be helpful.

First of all, it is explicitly what Minkowski did. He showed that all of relativity followed simply from postulating that we live in a four dimensional world with a certain geometry.
Also I've been reading through your website and what I've seen indicates that you are simply replicating, with a lot more words, some aspects of what Minkowski did in a 58 page report 102 years ago.

Well Minkowski has already done all this. His formulation of relativity doesn't need fields, light-waves or light corpuscles either. He described relativity as a consequence of pure geometry, hence what you have done is nothing new.
Further, a reading of your website indicates the same. What is correct on the website isn't new and what is "new" isn't correct. For instance you claim: which is completely false. Special Relativity is a special case of General Relativity. Minkowski spacetime, which is the geometric way of describing special relativity, becomes just one solution of the equations of general relativity. They are certainly not seperate.

I'm not accusing you of plagarising Minkowski. I just think that maybe what you are proposing isn't that new or incredible. It's just a very wordy rederivation of some of what Minkowski did. No, I'm okay with new things. In fact what I'm saying is that what you are doing is old. Something accomplished at the turn of the century. Of course that is in the cases where you are correct. Some of what you claim is known to be false. The Web Site of Science-Philosopher Viv Pope, at The Website of Science-Philosopher Viv Pope

I should say that in modern physics, especially after relativity, c is not considered a fundamental constant. This is because c can be eliminated from equations by a simple change of units. More correctly however c arises because human being measure time and space differently.
We measure the x,y,z coordinates with one unit, meters and the t coordinate with completely separate unit, seconds. Both should really be measured with meters. A second is just 300,000,000 meters in time.However if we keep our standard units equations have to be fitted with a factor, c = 300,000,000 m/s, in order to account for this mismatch of units.The only physically real parameter associated with light is alpha, the fine structure constant, measuring how much light couples to matter. There has yet to be an experimental test or cosmological observation which shows statistically significant variation in alpha. Also if alpha varied, there should be an alpha particle, which we should have detected already if it existed, but we haven't.

Ah, yes! You're right of course. I could say a fine-structure particle. Alpha is often called the fine-structure constant.The reason for this particle is that if something is no longer just a number, if it has different values at different points in space and time, then it is a field. And under quantum mechanics all fields are associated with particles. Actually that question has two different answers!Firstly an alpha particle could be considered a collection of twelve quarks as you said.However quarks don't actually exist at the current temperature of the universe. Quarks only existed early on in the universe's history. When we say that the proton is made out of quarks we actually mean that if the universe became extremely hot again the proton would become three quarks, it's not actually made out of them. It also acts a lot like it's a collection of three quarks in certain experiments. However technically there are no quarks inside a proton.