dlzc wrote: in

Dear Ollie B Bimmol:

On Aug 28, 11:18*am, Ollie B Bimmol wrote:
On a sunny day (Sun, 28 Aug 2011 11:23:31 -0400) it happened Yousuf Khan
wrote in :

On 28/08/2011 7:45 AM, Ollie B Bimmol wrote:
If E=m.c^2
then can we say that if lightspeed was to decrease,
and energy in the universe was neither added nor
removed, so constant, that then mass HAS to be
created?

I don't see how a decrease in light speed would lead
to mass being created. What has one got to do with
the other?

In the above formula, for E is constant, and m increasing,
then c must decrease.

The formula equates energy and matter at one time, not over changes in
c. The derivation of the equation required that c be constant in time
(or at least not be a function of velocity).

Or expanding on that, could it be that the redshift we see,
comes from a decreasing speed of light,
creating mass for the objects in the universe?

A decrease (or an increase for that matter) cannot be detected
by us. The speed of light is what determines both time and
distance for us. If light speed was changing, then time and
distance would change equally for us, and it would look like
the exact same speed to us all over again. We cannot detect
light speed changing while we're inside the universe itself, we
could only detect it if we were outside of the universe looking
in somehow.

Could you elaborate a bit on why that is so?

He covered that in the beginning of the paragraph. He and our
instruments have a size (and calibration) based on c-moderated
forces. If you decrease c, everything gets smaller than before, so
that light can make it "there and back again" to maintain stability.
So it looks to us like light from the old Universe has the same energy
of emission than before, but is anomalously large (as compared to
before the change).

David A. Smith

Thank you, this is very interesting, and I see you know a lot about it.
The other poster mentioned aether, and my question was if light would speed up if we removed the aether.
Then I thought of an experiment to remove the aether.
Michelson and Morley at one pint assumed their null result was due to the aether moving with earth.
So, if it is moving with the observer, then how about this:
Use a transparent vacuum rotating cylinder.
Shine a laser through the middle. Speed it up, the aether will be centrifuged to the sides,
then shine the laser through the center and via a mirror through also the side.
Combine the recieved pulses and see if there is a time difference from
the centre where the aether has been a little removed,
Would this work?

Ollie