2018-07-08 08:33:10 UTC
Georgia State University: "The end of the rivet hits the bottom of the hole before the head of the rivet hits the wall. So it looks like the bug is squashed. [...] All this is nonsense from the bug's point of view. The rivet head hits the wall when the rivet end is just 0.35 cm down in the hole! The rivet doesn't get close to the bug. [...] The paradox is not resolved." http://hyperphysics.phy-astr.gsu.edu/hbase/Relativ/bugrivet.html
"The paradox is not resolved" means that we have reductio ad absurdum. The bug is squashed in the rivet's frame and alive in the bug's frame. Conclusion: The underlying premise, Einstein's 1905 constant-speed-of-light postulate, is false.
However in Einstein's schizophrenic world relativity is immortal. Einsteinians have saved it by introducing two incredibly idiotic fudge factors:
1. The rivet gets longer than itself.
2. The end of the rivet moves at a speed close to the speed of light but a wave moving at the speed of sound chases it, catches up to it and stops it.
Here is how the two fudge factors are introduced:
Professor John de Pillis, University of California Riverside: "In fact, special relativity requires that after collision, the rivet shank length increases beyond its at-rest length d." http://math.ucr.edu/~jdp/Relativity/Bug_Rivet.html
Brian Clegg: "Unfortunately, though, the rivet is fired towards the table at a fair percentage of the speed of light. It's somewhat typical of this book that all it tells us about the speed is that γ is 2, which doesn't really give you an idea of how fast the rivet is going, but if my back of an envelope calculations are right, this is around 0.87 times the speed of light. Quite a fast rivet, then. [...] But here's the thing. Just because the head of the rivet has come to a sudden stop doesn't mean the whole rivet does. A wave has to pass along the rivet to its end saying 'Stop!' The end of the rivet will just keep on going until this wave, typically travelling at the speed of sound, reaches it. That fast-moving end will crash into the beetle long before the wave arrives. [...] Isn't physics great?" http://brianclegg.blogspot.bg/2011/11/relativity-can-be-riveting.html