Re: Question concerning Speed of Light


"Androcles" <Headmaster@xxxxxxxxxxxxxxxx> wrote in message news:gZOel.28965$HW6.13311@xxxxxxxxxxxxxxxx

"Dr. Taverner" <nospam.gwotton@xxxxxxxxx> wrote in message
news:gBNel.451$D9.183@xxxxxxxxxxxxxxxxxxxxx
You're probably all sick of n00bs asking questions about the speed of
light but I was curious about both c and a lightyear's definition based on
the question of wavelength and the ambiguity of the word "light".

My understanding is thus: "light" is generally defined as the visible
spectrum (about 350~800nm wavelengths). A particle stream moving in a wave
travels a different distance depending upon length and width of a
particular wave. i.e. a 1 meter distance is greater for an 800nm wave than
a 350nm wave as the overall distance can be stretched out to reveal a
longer line and overal distance of travel. This is the same as a serrated
knife having a longer cutting surface in the same length as a straight
knife.

c is defined as the speed of light in a vaccuum. We know that light
travels at different speeds in different atmospheres (air or water or a
Bose-Einstein condensate or "outer space"). This part of the definition
makes sense as it is giving the material in which the speed is measured. I
assume that a lightyear measures the distance light travels in a vaccuum,
or c/1 year.

What leaves me wondering is whether or not the speed of an 800ns wave is
faster or slower (or for that matter, shorter or longer over time) than a
350ns wave as both are still classified as "light"

Thanks for any responses.

Greg

If a galaxy is rotating and the velocity of light at each frequency
differs then there will be multiple rotated images with different
angles. See for yourself:
http://antwrp.gsfc.nasa.gov/apod/ap070411.html

If the velocity of light was a function of frequency,
a ROY G BIV rainbow spectrum would be observed
from a moving body that was emitting white light.

The speed of propagation of electro-magnetic radiation
is a function of the medium it is traversing.

velocity = ( 1 / permittivity(medium) * permeability(medium)^.5

A so-called photon is exactly ONE cycle of an electro-magnetic wave,
and it has a quantum ACTION of Planck's Constant,
and Planck's Constant / 2 pi is indicative of the photon radius.

The energy at the point of absorption
is the frequency at that point * Planck's Constant.

The amount of energy in one photon is thus a function on the relativity
velocity between the source point and the sink point.

energy = h * f

The maximum amount of power/energy/action
occurs when the source impedance equals the sink (Load) impedance.

At the quantum Planck's Constant level,
the maximum and minimum power/energy/action is the same,

so in order to have a quantum of action to take place (A quantum event)
the source impedance must equal the sink impedance
and both must equal the impedance of the medium,
which in the case of events occurring in space or quasi-space (air)
is about 377 ohms.

Observe electro-magnetic physics measurements generally reference cycles,
and mechanical physics measurements generally reference radii or diameter.

At the quantum or discrete level, cycles and integers (N) comes into play,
and at the continuous level, radii and diameters (X) come into play.

Note that "being" is discrete (Atoms and cycles),
and "becoming" introduces continuity (Entropy)
while an event is occuring.

--
Tom Potter
http://tdp1001.spaces.live.com/
http://www.tompotter.us/misc.html
http://www.geocities.com/tdp1001/index.html
http://notsocrazyideas.blogspot.com
http://www.flickr.com/photos/tom-potter/
http://tdp1001.wiki.zoho.com
http://groups.msn.com/PotterPhotos
http://www.androcles01.pwp.blueyonder.co.uk/dingleberry.htm



.

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