occasional meanderings in physics' brave new world

Name:
Location: New Zealand

Marni D. Sheppeard

## Monday, February 09, 2009

### Pioneering C Change

For years, Louise Riofrio has patiently explained her varying speed of light cosmology. Now, thanks to DIY QG, I would like to bring attention to this paper, by Antonio F. Ranada and Alfredo Tiemblo, which explains the Pioneer anomaly in terms of a varying speed of light cosmology, or rather the mismatch between atomic and astronomical time.

CarlBrannen said...

They are describing the effect in terms of a change in the rate of time. This is the way I've interpreted Louise's changing speed of light, see RIOFRIO Crushes CMB Anomalies!.

The next two papers I'm working on are the gravitation paper that will go into this, along with dark energy etc., and of course I'm still waiting to see where the CKM calculations end up.

February 10, 2009 10:11 AM
Anonymous said...

Yes, Carl. I haven't bothered thinking much about the Pioneer anomaly, so it is good to see this resolution.

Remote Kea

February 10, 2009 11:04 AM
Parvulus said...

But see that the Spanish researchers are reaching the exact opposite conclusion to Louise's.

Page 16: "Some final comments. First, as a consequence of the coupling between the background
gravitation and the quantum vacuum, the light speed would increase"

So, they are onto something, but got it backwards.

BTW, I have developed a model (cifresmodel.blogspot.com) that fits with Louise's thesis. I just need a piece of help to finish it. If you care to give a hand, see

February 12, 2009 10:08 AM
Anonymous said...

Parvulus, I suspect they meant that c increases with astronomical distance, which is just what Louise says.

Remote Kea

February 12, 2009 10:22 AM
Parvulus said...

Nope. The quote goes on as:

"the light speed would increase with an acceleration aℓ = 2atc, equal to twice the so called Pioneer acceleration [1, 2], if defined or measured
with respect to the astronomical clock-time."

February 13, 2009 9:20 AM