PeterDonis's latest activity

It can't be greater than or equal to the speed of light--that's the ultimate relativistic limit, even for unobtainium, superbium...

Quantum fields. Neither. Quantum fields are first. See above.

We've already given you the results that this lab produces--they're the results that relativity predicts.

You might like to read this: https://math.ucr.edu/home/baez/physics/Relativity/SR/rigid_disk.html

The idea of a disk confuses the issue that within the disk you have particles being accelerated towards ##c##. Each of those particles...

At that point the disc is not a single object, each piece of it to which an external force is applied is a separate, independent object...

Well, we don't have an actual test lab here, so all we can tell you is what the theory says. :wink:

Relativity says it must be. Relativity imposes a finite limit on the strength of materials, and that limit ensures that it is impossible...

No, just breaking apart, same as any other matter that you stress too much. Make jelly and put it on a barstool. Spin the barstool and...

The device distorts and disintegrates from internal stresses far before any part of it approaches lightspeed. If you posit arbitrarily...

Also, their use of the term "Fermi-Walker transport" is not consistent with other literature. They say their equation (B1) defines...

That at least explains their ##D / d \tau## notation--it's the same as what MTW call ##\nabla_\mathbf{u}##. So it's not quite the same...

Ah, I see it now.

In order to know whether the overview you got is even accurate, we need to see some actual references--the actual papers you found...

The best way to avoid misleading knowledge is to be very careful what sources you look at (the best ones are textbooks and peer-reviewed...