Is The Speed Of Light Slowing Down ?

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Discussion Overview

The discussion centers around the question of whether the speed of light is slowing down, exploring various claims and observations related to this topic. Participants reference multiple sources and observations, examining the implications of these claims on the understanding of light as a constant.

Discussion Character

  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant questions the constancy of the speed of light, suggesting it may be slowing down based on various sources.
  • Another participant challenges the validity of the sources provided, noting that a more recent observation indicates that the fine-structure constant does not vary over cosmological time.
  • A different participant defends the original sources, arguing that they highlight issues with current measurements of light speed.
  • Concerns are raised about the interpretation of the links, with one participant stating that the first link does not actually address the speed of light but rather the positions of pulses within a signal.

Areas of Agreement / Disagreement

Participants express differing views on the validity of the sources and the interpretation of the data regarding the speed of light. There is no consensus on whether the speed of light is indeed slowing down, and multiple competing perspectives are present.

Contextual Notes

Some participants reference older observations and techniques, while others advocate for newer methodologies, indicating a potential dependence on the definitions and interpretations of measurements involved.

Nommos Prime (Dogon)
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The second and third links you posted are dead; the first is really strange, and the last refers to a set of observations which were both difficult to do and gave marginal results; since 2002 (when the article you posted was published) there's been a different observation, based on a cleaner technique, which shows that [tex]\alpha[/tex] does not vary over cosmological time (to within a few percent). This was discussed at some length in another thread here in PF; I'll find it if you're interested.
 
The Links work fine from here in Australia (got somebody else to check it for me).

I don't see how thefirst Link is strange, it proves something is wrong with our measurements.

I've looked through the "cleaner" technique (I diasagree that it's "cleaner").

No matter, I'll leave it alone.
 
The first link does not pertain to a slowing speed of light. It pertains to the positions of pulses within a signal.

I didn't get a chance to review the second link.

The 3rd link isn't working for me either.

I'd be interested to see further discussion of the 4th link. Maybe I'll dig up that old thread...
 

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