Discussion:
Einstein's Paradoxes Are Actually Idiocies
(trop ancien pour répondre)
Pentcho Valev
2018-07-08 08:33:10 UTC
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The (in)famous bug-rivet paradox:

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

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Pentcho Valev
Pentcho Valev
2018-07-09 00:06:16 UTC
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"The Defeat of Reason [...] After 1925 Bohr and his associates introduced a new and unprecedented lowering of critical standards for scientific theories. This led to a defeat of reason within modern physics and to an anarchist cult of incomprehensible chaos. [...] How do you convince a whole culture that it is deluded?" http://bostonreview.net/science-nature-philosophy-religion/tim-maudlin-defeat-reason

How do you convince physicists that unlimitedly long objects CANNOT be trapped inside unlimitedly short containers and therefore the premise from which the absurd conclusion is derived, Einstein's constant-speed-of-light postulate, is false?

"These are the props. You own a barn, 40m long, with automatic doors at either end, that can be opened and closed simultaneously by a switch. You also have a pole, 80m long, which of course won't fit in the barn. [...] So, as the pole passes through the barn, there is an instant when it is completely within the barn. At that instant, you close both doors simultaneously, with your switch. [...] If it does not explode under the strain and it is sufficiently elastic it will come to rest and start to spring back to its natural shape but since it is too big for the barn the other end is now going to crash into the back door and the rod will be TRAPPED IN A COMPRESSED STATE inside the barn." http://math.ucr.edu/home/baez/physics/Relativity/SR/barn_pole.html

"In a more complicated version of the paradox, we can physically trap the ladder once it is fully inside the garage. This could be done, for instance, by not opening the exit door again after we close it. In the frame of the garage, we assume the exit door is immovable, and so when the ladder hits it, we say that it instantaneously stops. By this time, the entrance door has also closed, and so the ladder is stuck inside the garage. As its relative velocity is now zero, it is not length contracted, and is now longer than the garage; it will have to bend, snap, or explode." https://en.wikipedia.org/wiki/Ladder_paradox

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Pentcho Valev
Pentcho Valev
2018-07-09 08:26:03 UTC
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How do you convince physicists that the "enough strangeness" (introduced by Einstein in 1918) is one of the greatest idiocies in the history of science?

David Morin, Introduction to Classical Mechanics With Problems and Solutions, Chapter 11, p. 14: "Twin A stays on the earth, while twin B flies quickly to a distant star and back. [...] For the entire outward and return parts of the trip, B does observe A's clock running slow, but ENOUGH STRANGENESS occurs during the turning-around period to make A end up older." http://www.people.fas.harvard.edu/~djmorin/chap11.pdf

Physics Girl (4:30): "One last question. What's happening to the clocks during the period of acceleration? We still get time dilation, but we have to use a different set of rules from the general relativity. General relativity states that clocks runs slower in accelerated reference frames. So while your twin is turning around, her clock runs slower, and she sees the same thing. She sees your clock running faster than hers, so you're aging quicker. It's during this period of acceleration that you become the older twin."


"At the same time, the twin in the spaceship considers himself to be the stationary twin, and therefore as he looks back towards Earth he sees his brother ageing more slowly than himself. [...] When the twin in the spaceship turns around to make his journey home, the shift in his frame of reference causes his perception of his brother's age to change rapidly: he sees his brother getting suddenly older. This means that when the twins are finally reunited, the stay-at-home twin is the older of the two." https://hubpages.com/education/Twin-Paradox

John Norton: "Moments after the turn-around, when the travelers clock reads just after 2 days, the traveler will judge the stay-at-home twin's clock to read just after 7 days. That is, the traveler will judge the stay-at-home twin's clock to have jumped suddenly from reading 1 day to reading 7 days. This huge jump puts the stay-at-home twin's clock so far ahead of the traveler's that it is now possible for the stay-at-home twin's clock to be ahead of the travelers when they reunite." http://www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/spacetime_tachyon/index.html

Pentcho Valev

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