Photon question

[Kelddath]

First of all, i want to know, if the photon is a particle, how come it travels at the speed of light(isn't that in collision with Einstein theories?). And what is the mass/size ratio with the quark, being the theoretical entity.

And one more thing, what is the ratio in the light it self, between the photons and the waves?

Hmmm, and are the photons part of the Uv light to, or only the 'ordinary' light?

10x
Kelddath

[Tormod]

A photon is a part of the standard model in particle physics. It is the carrier of electromagnetism.

All forms of electromagnetism is the same, and it is spread out over a large spectrum. What is often called "normal" light is simply the part of the spectrum that is visible to us. Ultraviolet light has a higher frequency, than our eyes can detect. Night vision goggles lets us "see" this light by modulating the frequency so that it falls into the visible spectrum. The same goes for radio waves (although they are at the low end of the spectrum), and x-rays, which are at the upper end (Gamma rays are even higher).

As for ultraviolet light, here is a resource on that:
http://www.iuva.org/PublicArea/whatisuv.htm

Imagine the Universe has a good page on electromagnetism at:
http://imagine.gsfc.nasa.gov/docs/sc...mspectrum.html

Here is a quote from that page:

Electromagnetic radiation can be described in terms of a stream of photons, which are massless particles each traveling in a wave-like pattern and moving at the speed of light. Each photon contains a certain amount (or bundle) of energy, and all electromagnetic radiation consists of these photons.

The photon is not a quark, and it is not built from quarks.

Since the photon is (believed to be) massless, it does not have a ratio versus the quark.

Here's an excellent link:
The Particle Adventure

Hope this is helpful!

Tormod

[Tormod]

Perhaps it should be pointed out (in response to your first question) that a photon travels at the speed of light because it is light.

Tormod

[Sandman]

Hi.

Would it be right to say that a photon is pure electro-magnetic energy, with a frequency in the visible spectrum ? It has no mass, therefore it's not matter. It could theoretically be converted to matter, by Einstein's e=mc^2. Is a photon basically a unit of energy ? If this is true, then it makes sense for light to act like a particle or a wave, depending on circumstance.
Does this make any sense ?

Regards

Sandman

[Sharky]

Photons, I believe are the product of a shrinking electron that releases its positive inards freely of its positive resistant center and its positive resistant "cream filling!" Before the shrinking electron cancels itself out of existence it releases the positive exposed centers traped within at three times the speed of light cubed causing them to skip through the structure of space\time like a skipping rock throug a pond of water making it seem as if it were a wave. What we see and know as light is actually the slowing down of positive exposed centers; slowing down the speed of visible light.