Motor Daddy
Valued Senior Member
He doesn't pretend that.
He knows that the train-standard is a distinct standard.
Do you see that it is a useful standard?
There is not a "train standard." There is A standard, of which all frames use. He can't even measure the speed of light properly because he doesn't know his own velocity.
He doesn't want to make false statements. But what choice does he have?
Right, he is forced to make false statements, because he doesn't know the truth.
So it's only a semantic difference then?
No, not semantics, it's the difference between fairy tales and reality. If you say that's semantics, then you probably think it's just semantics between theism and atheism??
Doesn't work, MD. The wheel is moving, so it's length contracted. Different parts of the wheel are moving at different rates, so the length contraction varies around its radius.
The complete analysis is tricky, but very interesting.
In this mathematical world of length contraction, the spinning wheel must undergo some physical stress - either the spokes of the wheel have to be physically compressed, or the circumference of the wheel has to be physically stretched, or both.
Are you saying that it's impossible to have a true circle on the train? Pete, where do you come up with this stuff? You are living in Einstein's world of illusions. Why can't you see that? ...and it doesn't matter anyway, the actuators were calibrated so that the tabs hit them simultaneously. You are trying to deny that two clocks could ever be in sync. Do you think it's possible for two clocks to be in sync? Answer that question!
There's a question you haven't addressed yet: how can you tell if your preferred mathematical world matches the real world?
Because I know that objects travel in space. I know that light travels in space. I know the speed of light to be a constant because the meter is defined by light travel time.
In order for an object to travel in space, the observers in that object can't measure the speed of light to be 299,792,458 relative to their object in motion in space. It is simply impossible, because the object is in motion, and the speed of light is a constant.
The failure occurs because the observers in the object in motion in space fail to acknowledge their own motion, because they don't know it (in Einstein's world), so they assume (incorrectly) that they are motionless. Then they go on to say that they measure the speed of light to be 299,792,458 m/s in their object. They realize things don;t add up, so they come up with the crazy notion of time dilation and length contraction, and discard simultaneity in order to save their prized possession of their object being motionless. It's to laugh!
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