Originally posted by bossa I read a news report yesterday (somewhere) which stated that measurements seem to indicate that the laws of electromagnetism might well be very different in the far reaches of the universe. So it's possible that the laws of nature may not be as immutable as we thought.
Physicists never think or even claim that laws of nature are immutable.
It is their profession to try to alter them, their raison d'etre. That's why they try to stay as open minded as possible -- without however becoming dreamers
Now, to assume a constant actually is a field is common business in physics. So, variations of electromagnetic coupling constant (alpha) or gravitation are constantly being hunted for. If alpha turns into a field, physics would change and progress would happen. But in a way that current laws become special cases which still remain valid. No hope for photographers believing into magic
As for the work of Prof. Webbs (and this is what was addressed in the article you have read) ... his probably most recent publication is
->
http://arxiv.org/pdf/1202.4758v1.pdf
Please, refer specifically to Fig.8 and Fig.14. And decide for yourself. I never trust second sources when it comes to such things. Let me say this: Not all researchers are convinced about the conclusiveness of results. I share the doubt. Esp. as results of two observatories are combined and "by accident" one sees one side of the postulated dipole (of pstulated alpha field) and the other observatory sees the opposite side. That triggers my alarm bells.
Unfortunately, media have more recently adopted a policy to report about premature research results from physicists. I only say magnetic monopole, cold fusion or faster than light neutrinos in Italy. IMHO, this includes the Higgs boson discovery (which I think is real but results are too premature to be released to the grand public) and various studies about variations of coupling constants.
Of course, it is all entirely ff-topic here