Changing speed of light

Easy to slow light down...water, glass or half an inch of oak does it quite well.

Dunno how to do it on a quantum level, electro magnetically?

Yes, thats why you see the blue glow when nuclear material is stored in pools of water, because the particles that are emitted are moving faster than the 'speed of light' for that material (water).. something like that. The particle ionizes the water, and then the ion reaction is the blue light. (hydrogen frequency) I think..

Einstein proved that matter is stored energy. My own pet theory is that, both matter and energy are stored Time, or energy is time in motion, and matter is when that motion is locked harmonically into a standing geometric waveform. So basically, there is more time in matter than in space.. kind of like taking a 300,000 km piece of string, and wrapping most of it up in a ball. and subsequently, the 'speed of light' appears slower for any given material. A particle moving through matter may not have to traverse the entired 300,000 km, it must still obey the average apparent speed limit, because all matter is time, the particle and the medium are ultimately connected.

anyhoo... maybe the particle just slows down because its depressed about the senators losing the stanley cup... who knows?

who's depressed. we be celebrating out west

Hi Chris,

Suppose I drill a hole in a mirror then shine a light through the hole from the backside toward another mirror which is facing the mirror that I drilled a hole in.

Now, if I turn off the light source, does the light keep on bouncing back and forth from mirror to mirror forever (long as I don't move the mirrors)?

Theoretically, at any time in the future I should be able to look through the hole and see the light.

Probably an old paradox (?). Just thinkin though...

(maybe the light comes back out the hole and hides in the Stanley cup)?

John

Great question..I shall think on this while traipsing around the supermarket...D'oh!

Damn...havn't enven gone shopping yet.

Of course it carries on...until it disipates..

If you shine your torch up at the night sky the switch off, that beam is still travelling outwards, the wave front will spread out somewhat!

They send laser pulses around huge coils of fibre optic cable....dunno why...maybe they have races?

theoretically yes..except there is a hole in your mirror.. and the light will eventually escape. Even if you put the light in the storage mechanism, and then try to change the path with a prism, I still think eventually, you will lose your photon. When I used to try to design solar absorbers, I used this same basic principle to ensure that the photons get absorbed, because they will bounce between parallel plates.

Also the principle is used in the original laser/maser configuration where the opposite ends of the laser chamber were angled at 23degrees, with one end mirrored, and one end 99% mirrored..and because of the geometry of the setup (length and angle), is what creates phase locked photons.

Also the principle is sort of used in old fashioned amplifier tubes, where electrons are made to bounce between parallel plates.(sort of..curved) and at each impact, spring loose more electrons, thus increasing signal strength.

Lastly, as it is my belief that the great pyramid contains a giant laser, the grand gallery is a laser amplification chamber, so with angled ends, extremely precise geometry, and other features. (such as heat compensation)

Lastly, if you have an infinite pair of mirrors, then your system will work. This must be As I said in my earlier post, energy is stored time, and I think it occurs because of a paradoxical sitation, where absolute motion exceeds light speed, and creates 2 'times' and subsequently quantizes the packet of energy. Just read that theory the other day about some theorist suggesting there are 2 time dimensions.. I think that one fast and one slow might do it. then you can bounce between them like mirrors and then time becomes energy... like quantum waves on the boundary between the two.

just my crazy theorizin'...

I have to agree with Del on this one- gotta traipse around the market and ponder it deeply.

I concur completely on your pyramid theorem. It's true beyond any shadow of a doubt. The proof is on the back of the U.S. dollar bill: The all seeing eye at the top of the pyramid is what reflects the laser outward.

Even the writing on the seal: ANNUIT CŒPTIS is just ancient slang for "I knew it completely".

John

So you are saying that in reality, it all just comes down to MONEY?

$ = MC²

Try curving the mirrors (confocal) as they do in a laser. Infinite extent would not be needed, just the curves joining at the edges - but I'd appreciate a sample of the perfectly reflective material to help build my world-dominating weaponry...

BTW, my history is none too good - would you know the wavelength and material of the "original" laser/maser? (Presumably this is a Brewster angle for something? Typical HeNe lasers with silica windows would have been 34-35 degrees, I think)

For a perfectly reflective material, or zone of a mirror, you need a substance that is naturally reflective to the electromagnetic frequency you are designing for, and then spin it as fast as you can. say Annealed, unblemished glass has a tensile strength of 800,000 psi.... A Diamond has been spun up to 2,000,000 rpm ...

So the question is, does the motion of the reflector change the interaction between photon and reflector? Doesn't radar use frequency shifting to determine speed? (red shift and blue shift? What happens if the angle of incidence is towards or against the motion of the mirror? Is the moment of interaction truly a moment frozen in time or is the moment of interaction a deterministic quantum event, causing potential electronic position/velocity to collapse into a specific value? only the shadow knows for sure.

Chris

Hi Chrisg

Clearly, the surface velocity will be a long way below the speed of light, so the optical effect will be equivalent to the beam hitting the mirror at a variable angle of less than 10-urad. If both mirrors are spinning in the same direction, only out-of-spin movement will matter, and that must average to zero. Do I assume that the spinning is intended to average out any aberrations in the mirror? Has this actually been done successfully anywhere (I'd be concerned about vibration)?

Fyz

Hi John,

In the real world, no. Mirrors are not perfect reflectors, so some light is lost in each bounce (absorbed, converted to heat).

As others point out, light is also lost through the hole. If you can look through the hole and see light, this is light that is lost in each bounce of that mirror.

Also, light can be lost in the medium between the mirrors, if the medium's atoms or molecules absorb at the wavelength of light you are using. Actually, this is used in a technique known as Cavity Ringdown. If there is a material that absorbs in the path-length, it attenuates the light. So the technique uses a similar set up as your hypothetical experiment. Light is injected, and the time required for the signal to die off is used to determine concentration of the gas in the path-length. The more absorbing molecules, the faster the light signal is attenuated.

Tad

Hi Tad,

I stand attenuated!

I knew I should have jammed a cork in that hole.

Well our bathroom has two large mirrors on opposite facing walls. Due to a slight angle between them however, I can only see about 8 or 9 of myself. So, in simple theory yes, but practically, no.

Do you mean as time passes time increases. As time is stored in matter matter increases. It means that every second matter is increasing.

I generally find that as time passes it ceases to matter!

Guest,

I don't see that happening. Standard theory says that energy can neither be created or destroyed. What I am describing is a scenario where energy is created continuously and universally. Given the appearance of steady state, and the principle of balance, then if my scenario is true, then there must be an equal un-creation of energy. The real question here is, what has cause the ripples in the surface to originate in the first place, to create the standing waves we see as energy and matter. Its like asking why there are waves on the ocean...

Chris

Ah...the wind of time....?

well the good church banned the steady state long back not fasioonable

not equal un-creation of matter, it is an ever expanding universe!

I'm not logged in again, ...

DavidARheault

David,

I thought of that, but if it wasn't an equal un-creation, the matter would be poping into existence right in front of you.. not a growth on the parsec level, like expanding universe theory. I'm not actually trying to say that the universe doesn't shrink, grow, or change. I am saying that if matter is created it must also be uncreated at the same time.

I'm saying that, regardless of whether the oceans are shrinking or growing, the waves must both have an up and a down, as they are part of a cycle. (metaphor)

Chris.

I too believe the universe is trying to balance. energy is created, then slows down to the speed of matter, combining to form atoms. the weight of the atoms then must be balanced by energy, which is created to balance the weight of the atoms, on and on and on.

Electricity and also I believe "elemental particle" energy, travel at or above the speed of light. I believe there is a net of "0" "time" in all of the universe. Matter has a positive "forward" time and energy has a negative "backward" time which balances out to a net of 0 time. Thus the Universe will infinately expand to infinity.

Therefore, time is not a dimension, it is only an effect of dimensions.

I have read recently that a group of physicists have come out and said that they don't believe there will ever be a "big crunch". I believe the same. Although there may be an ebb and flow to the rate of increase, I believe the growth is infinate.

DavidARheault

Hi David,

Her name is Joyce Spoon, or Poon, something like that. There has been ongoing research in this area, by others as well, using periodically poled KTP (PPKTP) crystals. For example see this link:

http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVF-4CDHKRG-1&_user=10&_coverDate=08%2F15%2F2004&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=6a5d1941690456755809db8b525f5788

John

John, thank you. by the way it is poon with a couple of extra names in between. I looked in the program.

DavidARheault

Increase and decrease. Please follow this link. Tx.

http://www.scienceblog.com/light.html

"Anyway, from what I had gathered, this person had figured out how to control the speed of a photon (s), and slow it (them) down to 1/30 the speed of light in a controlled fashion."

Maybe the Name and Thesis is in This List

Indeed it is in the list!

Active and Passive Coupled-Resonator Optical

Waveguides

By Joyce Poon.

The thesis is 188 pages, so I went ahead and memorized it. If you have any questions on how to control light speed, just let me know.

I'll make something up.

I don't know. But ask Arthur C Clarke, or Stanley Kubrick, they did it in "Space Odyssey" with ease.

Wangito.

I thought the electrical engineers had been doing this sort of thing using corrugated waveguides since almost the year dot (before 1960, anyway). Presumably the trick here was to build something that was both adjustable and on the right scale for visible light?