A direct link to the above video is at http://www.youtube.com/watch?v=ksTngIWRnWs
Here's an interesting video, just over an hour long, featuring a presentation by theoretical physicist and author Peter Russell. At about the 46:25 mark he makes a point that I thought was particularly useful for the way it relates to my project. Here's what he says about Einstein's Special Theory of Relativity and the speed of light:
So: when a stationary observer observes a ray of light going by, it goes 186,000 miles in one second. Somebody moving at 87% of the speed of light (this is just the way the mathematics work out) would see half that amount of distance, and half that amount of time: but the speed would still be the same (93,000 miles in half a second is the same as 186,000 miles in a second). Someone moving at 99.5% the speed of light sees a tenth of that: 18,600 miles in a tenth of a second. It's still the same speed.
What Einstein realized is there's something called the spacetime continuum, out of which both space and time appear. The spacetime continuum is not like space, it's not like time, it's not a mixture of the two, it's something we don't know and can't describe.
What we do know is the space and time that it gives rise to. But it never gives rise to the same amounts of space and time: different observers see differing amounts of space and time so space and time vary.
What Einstein showed is there's something in spacetime called the interval. It is like the equivalent of distance or seconds, but the interval is actually the subtraction of the square of space and time (s^2 - t^2), it's actually the square root of that. And that turns out to be constant. So in spacetime there is a constant, and the "distance" in spacetime never changes... although what we experience in space and time changes.
So this led to some more weird things about light.
What happens if you travel at 100% of the speed of light? If you look at the way things are going with our equations here, you'll see that light experiences itself traveling no distance in no time. From light's point of view, light does not exist within space-time: for a photon, birth and death are the same moment.
Light doesn't experience itself traveling through space and time. There is no non-locality for light because it's one phenomenon within one moment: this is light's point of view.
So. The reason for this is that the spacetime interval in the spacetime continuum for light is always zero: always zero. So from light's point of view there is no space, no time, no mass. Light does not exist within the world of spacetime and matter.
So what do we make of this thing called "c", this constant "speed"? I put speed in quotes deliberately because what we observe as speed, I don't think is speed at all. When I observe a light beam traveling from the back of the room to my eye, in spacetime the beginning and end of that light beam are the same: spacetime is bent so they are the same. In my frame of reference I stretch out that zero interval into space and time, and I always stretch out 186,000 miles of space for every second of time. If I'm traveling very fast I stretch out a smaller amount, very slow I stretch out a much larger amount, and so on.
So I don't think "c" is a speed at all. Rather, it's the constant ratio of the manifestation of space and time. For every 186,000 miles of space that appears, 1 second of time appears.
Immanuel Kant was on to this two hundred years ago. He said "Space and time are the framework within which the mind is constrained to construct its experience of reality".
The above presentation returns us yet again to the important idea that our reality is not continuous, and that when we look up into the sky at night we are looking back into time. From the photon's point of view, it took no time whatsoever for it to travel from that distant star to my retina. Isn't that an amazing concept to consider?
Enjoy the journey!
Next: Cymatics, Gravity and Light