Time to end all misconceptions for ever!

[gamefreek_01]

Almost every thread im interested in or any topic of astrophysics is somehow associated with the speed of light and such, time, and all this einstein stuff. The speed of light is just a speed if it changes it wont effect anything except the force that particle of light, it wont change dimension it wont later time. i cannot understand why people with such great minds can use this pitiful thoery as there basis to all thinknig.

[C1ay]

Originally Posted by gamefreek_01

The speed of light is just a speed if it changes it wont effect anything except the force that particle of light, it wont change dimension it wont later time.

Is there a particular reason in starting a new thread for this instead of discussing it in the thread already started for this topic?

[gamefreek_01]

i did not know that there was another thread but i am very angry at everyone for believe in the most implausble theorys.

[paultrr]

One of the reasons about the interest in weither C is constant or not is that certain physical properties could well be effected by a change in C, especially if other constants like the fine structure constant or planck energy are involved. Also, part of those three roads tends to make predictions that imply C should change at least at certain scales. So what's actually being sought is a better understanding of those natural processes that brought about this universe in the first place, irrespective of the actual changes themselves.

One equation that would tend to vary if C is not a constant is E=MC^2. The velocity of light in the equation if it is a variable would then signal that energy itself has varied over time and possible from place to place.

Also, if perhaps you where to join those threads you might discover there is some minor evidence in its favor. One time period even by theory it did alter in was that of inflation(False Vacuum does not have the stress energy tensor of our vacuum at present). The arguement and debate going on today concerns the time after inflation. Also, a short check of published articles out there on the subject and cosmic observational reports would show you that this is something being debated by mainline researchers, not just fanatics as one might think. I think people like Lee Smolin, Hawking, and many others are considered sane mainline researchers in the field of physics.

[C1ay]

Originally Posted by gamefreek_01

i did not know that there was another thread but i am very angry at everyone for believe in the most implausble theorys.

Please read through the topics before starting new ones. It helps everyone to share their opinions with each other if they have less of the same to wade through.

BTW, Welcome to Hypography. There is a FAQ here that will help you get started.

[paultrr]

See:

arxiv.org/abs/hep-th/0208122

http://www.sciencedaily.com/releases...0212075309.htm

citebase.eprints.org/cgi-bin/citations?id=oai:arXiv.org:hep-th/0208122

stacks.iop.org/1475-7516/2003/i=07/a=004

physics.nad.ru/cgi-bin/forum.pl?forum=eng&mes=1102

stacks.iop.org/0264-9381/16/2741

www.ebicom.net/~rsf1/uhecrs.htm

New Scientist Breaking News - Speed of light may have changed recently
19 March 2005. JOB OF THE WEEK. The World's No.1 Science & Technology News Service. Speed of light may have changed recently. 19:00 30 June 2004 ... of an invariable speed of light comes from measurements of ... a variable alpha. For example, if it had been lower in the past, meaning a higher speed of light, it ...www.newscientist.com/article.ns?id=dn6092

That's the reason all the debate is going on and these are just a few out there. Its discussed in the IOP, in the AIP, etc which are all mainline groups.

[Little Bang]

One of the reasons for being hung-up on C is that it is a function of time, and time is a variable commodity all over the universe. As light approaches the center of a Black Hole, time approaches zero. What happens to the speed of light X / t->0?

[WebFeet]

Originally Posted by Little Bang

One of the reasons for being hung-up on C is that it is a function of time, and time is a variable commodity all over the universe. As light approaches the center of a Black Hole, time approaches zero. What happens to the speed of light X / t->0?

If C is not a constant, but the variable commodity all over the Universe, then Time could be seen as a function of C.
Instead of C being a consequence of SpaceTime, Time becomes a consequence of C in Space.
For time to be zero, the speed of light would also have to be zero. No matter which direction light travels in it always moves forward in that direction, then time would also always move forward. This would mean that time travel in any direction other than forward would not be possible.

[maddog]

Originally Posted by WebFeet

For time to be zero, the speed of light would also have to be zero.\

Not True! In QED the action of the propagation of a photon can be written independent
of Time!

Maddog

[Qfwfq]

I'm not sure that's a conclusive argument at all maddog, just as much as I disagree with:

Originally Posted by gamefreek_01

The speed of light is just a speed if it changes it wont effect anything except the force that particle of light...

Although we trditionally call it "the speed of light", it isn't just the speed of light. It isn't even just the speed of propagation of the electromagnetic field, although electromagnetism is what historically brought up the point.

It is a fundamental aspect of space-time geometry. Lorentz covariance is quite well verified for phenomena of all types. In WebFeet's thread I posed a couple of questions, it might be helpful to meditate upon them here as well:

What does it mean, to measure "the speed of light"? What does it mean, to say that c is 3*10^8 m/s?

What would it mean, to say that c had changed?

I suggest thinking very carefully about it.