I agree with RJ, to me it always seemed that

e=mc^2

so, mass=energy, which should have a gravitational effect.

I have read before that this is not the case, and I do not like it. If mass really is energy, how come then doesn't it exert gravity, if it is really just mass. Are there two categories of mass now? Its completely unsatisfying, and I was always taught e=mc^2 is flawless.

I didn't claim that you posted a picture with symmetrical spokes, quite the opposite, you posted an incorrect picture showing asymmetrical spokes, I am telling you this the second time so I am not contradicting myself.

How are asymmetrical spokes incorrect? I trust the links I posted before, not to draw out meaningless details. We both agree the spokes will at least

*appear* to be bent out of shape, right?

Just visually. I do not understand the rest of the word salad you posted.

Relativity is not just visual. There are also the time effects. For instance a train 2 km in length with fit inside a tunnel which is only 1 km long if it is going fast enough. The gates on the tunnel can even be shut at the same time (in the observer's reference frame), because it will not be simultaneous to the people on the train.

If a wheel is rotating and and is at the same time traveling close to the speed of light, it will appear distorted in that there will be more spokes one one half of the wheel. This is scenario is not physically impossible, unlike a wheel which rotates at relativistic velocities.

It will appear distorted (or will it?). If there are lights on the wheel then any sensor will tell you that this light comes from a distorted wheel. If there is any charge on the wheel, any charge sensor will tell you it comes from a distorted wheel. If there is any gravity exerted by the wheel, a gravimeter will tell you that it comes from a distorted wheel!! IE center of mass is not where the axel is!

So, I guess the only thing you can argue now is that the wheel

*will not* look distorted. I don't see how this can be true...

:shrug: