wrote:

Light moving through water or glass is slower. As
wavelength * fraquency = speed,
what changes: wavelength, frequency or both ?
Another question: what we observe as the colour of light,
does this correspond to energy, frequency or wavelength ?
And a third: are the physicists able to measure
amplitude, frequency and wavelength of light ?
Hero

Frequency is constant. Wavelength depends on local refractive index.
Color is frequency-dependent. Yes.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf

"Uncle Al" wrote in message
...
| Frequency is constant.

Well done, phuckwit.
What's redshift?

Androcles.

Light is at c in water , it is a atom to atom path so its c minus the
reactive conductance .

tj Frazir wrote:
Light is at c in water , it is a atom to atom path so its c minus the
reactive conductance .
Thanks tj.
What is reactive conductance ?
Is it, that the lieght is moving zig-zag a longer way?
Or does this mean there is interaction between atoms of water and the
light passing through?
If there is interaction, is this due to the mass property of water or
what?
If there is interaction, is it only inside the water, or does this
prolong a little bit, when the light leaves the water ?
Hero

Jan Panteltje wrote:
On a sunny day (28 Sep 2005 12:28:12 -0700) it happened
wrote in
Jan Panteltje wrote:.............
I think i can understand this part. Now, i wrote:
A moving source of sound ( a train riding and whistling) is changing
wavelength of sound in difference to being at rest. When the train is
at rest and i am moving towards him in another train, frequency
changes.
Yes Doppler effect.
Only funny thing is that fisicists say that in Doppler in the case of sound
the speed of you relative to the air changes..
My point is, in one experiment the frequency changes, in the other the
wavelength.
Can this be observed with light too?

As you can see from this I am no fisicist, and Al is a chemist.
Wormly a cut and paste parrot.
Meron is real, but limited to Xrays...
Androcles agrees with me that it all is strange, and something does not figure.
All together we will never get a Nobel for fisicks I'm sure.
Getting nearer to what is real and true is very satisfying, isn't it.

(Andromeda is moving
towards us or we are moving towards Andromeda?)Please just
kindergarten-physics.
Yes, light from far away stars seems to be shifted towards the red (the spectral bands
fisics is full of hypothesis.
Andromeda has not red-shift, but the opposite. But my question, when we
analyze the light coming from Andromeda, can we differ what is
frequency-shift and what is wavelength-shift?
I WOULD like to hear the theories a million years in the future, if humanity
still exists (existed), and what they would say about 21 century fisicks.
Everyone likes confirmation, but the best confirmation one gets from
nature and experiment, not from people, although...
Have fun and sun
Hero

Androcles wrote:
Up to this i did understand.
| A moving source of sound ( a train riding and whistling) is changing
| wavelength of sound in difference to being at rest. When the train is
| at rest and i am moving towards him in another train, frequency
| changes. Can this be observed with light too?

Yes.
c+u
f' = f-------------
c+v
Do You mean:
f = frequency, c= vacuum speed of light u= speed of moving observer
v= speed of moving source ???
Thanks for Your help
Hero

"Yes Doppler effect.
Only funny thing is that fisicists say that in Doppler in the case of
sound
the speed of you relative to the air changes.. but in case of light (as
sound was a medium) they pretend there is no aether and then explain
Doppler
for light by claiming the relative speed for light to you (the
observer) is
always c... sort of an Einstein postulate, but we know there is an
aether.
To fix this, fisicists have now come up with the 'non emtpy vacuum',
the
'quantum vacuum'.
So they can always claim 'yes we were always right there is no aether,
but it is the 'QV'. "

I believe you are right, they say ether is fools gold but the quantum
vacuum of empty space is where all the smart money is at,

I am buggered if I can tell the difference,

On a sunny day (29 Sep 2005 12:25:21 -0700) it happened
wrote in
.com:

I WOULD like to hear the theories a million years in the future, if humanity
still exists (existed), and what they would say about 21 century fisicks.
Everyone likes confirmation, but the best confirmation one gets from
nature and experiment, not from people, although...
Have fun and sun
Hero
Sun? Summer is passed here, I have seen yellow leaves on the trees here
already.
You should read what I wrote in
http://groups.google.com/group/sci.p...9882 b8208564
It may just be so physics has fooled itself a bit.
In all teh experiments that measure one way light speed or interference,
we use lenses and mirrors, that actually transform .. I mean
even if light came in at c+v, it would leave the lens or mirror at c in the
local frame.
If there is 'something' in the quantum vacuum, then there is an aether,
and however you slice it and however much you like the match of space-time
by Einstein, it explains nothing.
Having an aether (in some form) and the Michelson Morley experiment
misunderstood, De Sitter falsified would make a lot more sense to me.

It would be funny if that 'quantum vacuum aether' caused redshift.. we
recently learned here that higher frequencies light move slower.....
So 'c' is no constant..... propagation speed slows.... depends on f,
a waveform distorts..... something has to give way in physics....
It is a very interesting thing, but the sun has orbited the earth for
soooo long in human history... group awareness, religious belief,
parroting others, not an open view, no analysis no ability to analyze
... deduce... the result of jamming kids for many years with dry knowledge.
That is humanities state.
Wrong priorities... First understand yourself, then tackle science if you
are gifted that way...
Maybe this humanity has no future, we need a redesign of the brain.
Maybe (and likely) this is how nature evolved, and you are all stuck with it.
LOL
hehe
have fun
In the sun, the one that shines in the heart for as long as you want.
If you want.
Ultimately we are all that speck of dust with a ticker that plays... plays to
the tune of the universe.

wrote in message
ups.com...
|
| Androcles wrote:
| Up to this i did understand.
| | A moving source of sound ( a train riding and whistling) is
changing
| | wavelength of sound in difference to being at rest. When the train
is
| | at rest and i am moving towards him in another train, frequency
| | changes. Can this be observed with light too?
|
| Yes.
| c+u
| f' = f-------------
| c+v
| Do You mean:
| f = frequency,

Emitted frequency.


| c= vacuum speed of light

Speed of a signal.
It can be sound, a marble rolled across a desk telling you boss you've
arrive for work, a paper airplane thrown across the room with a message
on it, a telephone conversation across the Atlantic. You choose.


| u= speed of moving observer

Yes.

| v= speed of moving source ???

Yes.


| Thanks for Your help

You're welcome.
Androcles.

"blackboab" wrote in message
ps.com...
| but we know there is an
| aether.

"We" do not know that at all. YOU know it.

*I* know that lightspeed depends on the speed of the source, AND I have
the evidence:
http://www.ebicom.net/~rsf1/sekerin.htm
http://www.britastro.org/vss/gifc/00918-ck.gif

| I am buggered if I can tell the difference,

Just buggered, there is no difference between Vladimir Sekerin's work
and my own.


Androcles.