>>11743005>>11742977>>11742606the barn and pole paradox has nothing to do with rigidity. it is solved by simultaneity--even if the pole is fully constrained inside the barn in the barn's frame, it never is in terms of the pole.
for the rivet, doing the change-of-basis calculation would show you that the time that the rivet point would reach kojima is technically after the rivet head hits the opening. so, it would've been stopped
