Andreas, there are people publishing material regarding the speed of light all over the place now. Because following the data as Barry has done results in the impossibility of an old universe, however, I can guarantee to you that those who agree with him will not be published in peer-reviewed secular journals. The secular peer-reviewed journals turn down EVERY attempt by anyone associated with any creationist leanings. The only exception to this that I am aware of involves the articles by Mark Armitage on parisitism, which are strictly biological and not connected with his YEC stand. But I can guarantee to you that his material on radiohalos in conjunction with Dr. Andrew Snelling will never make it into a secular journal.
What you will see in the speed of light materials which are being published in the secular press (Maguiejo, Barrow, Albrecht, etc.) is the insistence on ONLY the speed of light changing, when that is impossible. My husband had a chance to ask Dr. Albrecht about this a year or so ago, and Dr. Albrecht's response was that if they didn't limit the change to just the speed of light, they wouldn't be able to arrive at the conclusion they wanted to arrive at! Now THAT'S the way to do science, eh? Determine your conclusion ahead of time and then manipulate the data to agree.
Barry has not done that. He has simply reported, on those charts, the data that was accepted as accurate each of those years and given the publications the data was found in. There is no interpretation in that, just reporting. Keep in mind that those who reported the data and the publications in which the data was recorded are all anti-creation.
However, there is an entire physics research group at Mahatma Ghandi University in India which has requested, and received, hard copies of all Barry's work as it is one of their main fields of research right now. And again, scientists from all over the world, literally, contact us on a continuing basis about Barry's work. He is taken very seriously -- albeit still in private. I am hoping that does not continue that way, but we are confident that in God's good time, the people who want the truth will be able to find it. And those who don't want it won't care anyway.
Now, about measurements. The fact that everything consists of atoms has nothing to do with the standards of measurements in the past when atoms were unknown. Atomic measurements are a product of the twentieth century and were unknown, and therefore unused, in the past.
About what is wrong in physics. Physicsts are often all to ready to admit that a lot of the quantum theories that hold sway now are running into too many problems to be very satisfactory. You can know something is wrong without having found out what is right yet. There is a lot of work going on. If you are truly interested in this field, suggest you subscribe to one of the standard physics journals and start reading!