Eric Gisse wrote:

On Apr 27, 12:54 am, HW@....(Henri Wilson) wrote:
On Thu, 26 Apr 2007 18:07:12 -0600, Art Deco wrote:
Henri Wilson HW@....(Henri wrote:

On Wed, 25 Apr 2007 18:41:12 -0600, Art Deco wrote:

Henri Wilson HW@....(Henri wrote:

On Wed, 25 Apr 2007 16:19:45 -0600, Art Deco wrote:

Leave Andro alone. He's not as stupid as some others here.

"Photons do not have wavelength"

I dare you to support this silly claim.

Note: Henri didn't even bother to try.

There was an obvious typo in my last message. 'c' should have been 'v'.

This is what I was asking:

The equations for gratings include 'wavelength' and not light speed or
'frequency'.

wavelength = c / frequency

What's 'frequency'?

Cycles per second of an oscillator or periodic phenomenon. Was that
so hard? Or have you never gone to the seashore and counted waves?

Have you counted light oscillations?

Not personally. But atomic clocks do:

http://en.wikipedia.org/wiki/Second

If a grating is used to inspect light coming from a star moving at
v towards us, then the diffracted angles are indicative of the relative
speed
between the star and the grating.

If the grating is now moved away at 'v', why should those angles
change?
Certainly the movement of the grating has not altered the light's
wavelength
in
any way.

I smell a flaw in a theory somewhere.

What flaw?

F-L-A-W

So you can't specify anything. Didn't think so.

You can't answer the question...because you know nothing about physics at
all.

Listen up, this is how it works -- you claimed there is a "flaw in a
theory somewhere" -- it therefore up to you to specify said flaw, and
to support said claim. Not I.

Silly person.

Your realativist colleagues have assured us that the grating equations
don't include light speed or frequency. You can look them up on google .

Deriving the equations that describe how diffraction gratings work is
so simple it is assigned in freshman physics courses.


I want a relativist to answer my question.

So you can ignore the answer while pretending the "relativist" said
something else.


If the grating is moved away at v, why should the wavelength of the incoming
light change?

Hello, doppler shift?

Also note that Henri ran away from his (and Androcles) claim that
photons don't have wavelength.

--
Supreme Leader of the Brainwashed Followers of Art Deco