knowwhatyoudontknow said:
The original intent of my question was to reconcile the idea of time dilation and length contraction near a black hole.
And, as I have already said, before you can do that you need to describe, explicitly,
how "length contraction" is measured by an observer at a distance.
For an object that is close to the hole, the observer at a distance can measure its time dilation, relative to him, by receiving light signals emitted by the object at regular intervals by the object's clock (for example, one signal per second by the object's clock) and seeing at what interval he receives the signals, by his clock. "Time dilation" means the signals are received by him at greater time intervals than they are sent (for example, they might arrive every 3 seconds by the observer's clock, which would indicate a time dilation factor of 3). This is the standard way of defining the "time dilation" of an object close to a black hole.
There is, however, no corresponding "standard" way of defining "length contraction" for such an object, as measured by an observer at a distance. That is why you need to specify explicitly how you want the distant observer to do that.
knowwhatyoudontknow said:
Tidal forces stretch things in a radial direction
More precisely, it causes two
freely falling objects that are separated radially to increase their separation. But a single object, held together by internal forces, will not necessarily stretch in the same way; it will experience increasing internal stresses instead.
knowwhatyoudontknow said:
a stationary observer at a distance sees a progressive slowing of the object
More precisely, he sees light signals arriving from the object more and more redshifted, and arriving at his location larger and larger time intervals apart.
knowwhatyoudontknow said:
until it get stuck at the horizon, in a sedimentary way, and becomes something that is 2 dimensional.
None of this is correct.
knowwhatyoudontknow said:
I think this thread is saying that length contraction doesn't make sense from the perspective of a stationary distant observer because the curvature of space makes any measurement questionable.
No, what the thread is saying is that until you have defined, explicitly,
how "length contraction" is to be measured, nothing useful can be said about it at all.
However, from the rest of your post, it seems like the "at a distance" question is not what you actually wanted to ask about. I'll respond to that further in a separate post.