[PmbPhy]

Time as a derived number, distance/speed, is a variable.

What do you mean by a "derived number"?

The Lorentz tranformation of t results in a different value for t', for relative motion.

Yep. I'm well aware of that. There are two measures of time in relativity. One is called proper time and the other is called coordinate time (or simple "time"). Proper time is the time as measured on a clock which passes through the two events of concern while moving on a geodesic. The coordinate time isn't. The proper time between two events is a Lorentz invariant whereas the coordinate time between the same two events isn't.

You can do SR using algebra!

Yep. I'm well aware of that.

I'm not here to impress anyone, so my level of math is irrelevant.

I never assumed that you were. I was merely pointing out a small point on the definition of what the term "scalar" means in SR. That's all.

[phyti39]

All in all. TNS is probably the best place i know, although I've seen some very close to it. But, we still have that glimmer of humility hiding behind our convictions, and that is in my mind, what science is about, not bullying, talking.
=

And that goes especially for you moderating.
Keep on doing the work you do.

And now I will define 'c' as something similar to a turtle, I'm positive you will agree?

I would like to believe that the original intent of science forums was similar to that of "Scientific American", to present complex ideas in terms understandable to the common person with limited technical knowledge. Some have drifted away from that purpose. Those in their specialized fields have their own resources for staying current.

I trust your recommendation is true.