Discussion:
Rods Longer Than Themselves in Einstein's Schizophrenic World
(trop ancien pour répondre)
Pentcho Valev
2017-02-13 23:35:02 UTC
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The so-called bug-rivet paradox demonstrates an idiotic consequence of Einstein's 1905 false constant-speed-of-light postulate:

A bug is alive in one reference frame and squashed in another:

http://hyperphysics.phy-astr.gsu.edu/Hbase/Relativ/bugrivet.html
"In an attempt to squash a bug in a 1 cm deep hole, a rivet is used. But the rivet is only 0.8 cm long so it cannot reach the bug. The rivet is accelerated to 0.9c. [...] The paradox is not resolved."

In the rivet's frame, "the end of the rivet hits the bottom of the hole before the head of the rivet hits the wall" - the bug is squashed. In the bug's frame, "the rivet head hits the wall when the rivet end is just 0.35 cm down in the hole" - the bug remains alive.

Of course Einsteinians do realize that the bug being squashed in the rivet's frame and alive in the bug's frame is fatal for Divine Albert's Divine Theory. So they resort to an idiotic ad hoc "requirement":

The rivet shank gets longer than itself.

Now poor bug is squashed in both frames and Divine Albert's Divine Theory is saved:

http://math.ucr.edu/~jdp/Relativity/Bug_Rivet.html
"In fact, special relativity requires that after collision, the rivet shank length increases beyond its at-rest length d."

http://brianclegg.blogspot.fr/2011_11_01_archive.html
"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?"

Note that the end of the rivet keeps on going at 87% the speed of light and a wave traveling at the speed of sound is chasing it in order to stop it! We all live in Einstein's schizophrenic world, don't we?

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Pentcho Valev
Pentcho Valev
2017-02-14 15:22:37 UTC
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Lawrence Krauss teaches length contraction:


Penis analogy in general relativity by Lawrence Krauss

If Laurence Krauss had carefully studied the bug-rivet paradox and noticed the miraculous elongation of the rivet shank, he would know that Einstein's relativity not only shortens penises - it can also make them unlimitedly longer than themselves. An extremely useful theory - it will never be proven wrong.

Pentcho Valev
Pentcho Valev
2017-02-18 20:42:07 UTC
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http://brianclegg.blogspot.fr/2011_11_01_archive.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?"

Absolutely great, even idiotic! The end of the rivet keeps on going at 87% the speed of light and a wave travelling at the speed of sound is chasing it in order to stop it! Here is a breathtaking discussion on the matter that can only take place in Einstein's schizophrenic world:

http://www.researchgate.net/post/The_bug-rivet_paradox
Abhishek Maniyar: "According to the solutions provided for bug and rivet paradox, in the bug's frame of reference the head of the rivet first collides with the wall but the end of the rivet continues to extend unless the information that the head has collided with the wall reaches the end of the rivet and so finally bug is crushed...the information goes at the speed of sound which is quite small when compared to speed of rivet..so by that time when the information reaches to the end of the rivet to stop extending, it already has expanded by a huge amount!! Doesn't it seem strange?"
Rob Carroll: "The information does not necessarily travel at the speed of sound, but is limited by c, and even if the information is sent at this speed the paradox is resolved and both frames of reference will agree with each other that the bug is crushed."
Abhishek Maniyar: "thanks Rob...From your explanation I understood how the paradox is resolved...but just consider this case- if the information is traveling with the speed of sound which is very small compared to speed of rivet. so by the time information has reached the bottom of the rivet it must have expanded by a 'huge' amount than its natural length... don't you think this is weird?"
Rob Carroll: "That would be true, but the expansion would also be limited by the surface on the other side of the rivet. Another thing is that the speed of sound in a dense solid such as the material forming a rivet has a much larger magnitude than the speed of sound through air."

Pentcho Valev

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