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Author Topic: Superluminal Signals in Einstein's Zombie World  (Read 2610 times)

Offline Pentcho Valev

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Superluminal Signals in Einstein's Zombie World
« on: 15/04/2006 16:00:21 »
There are textbook problems leading to the conclusion that, if a signal can move faster than 300000 km/s, the theory of relativity is wrong. So is Problem 6 ("Train in a tunnel"), p. 47 (solution on p. 53), in

http://www.courses.fas.harvard.edu/~phys16/Textbook/ch10.pdf

In a normal world, in the presence of such problems, the discovery of superluminal signals

http://i-newswire.com/pr43033.html
http://www.newscientist.com/article.ns?id=dn2796
http://gregegan.customer.netspace.net.au/APPLETS/20/20.html

would trigger a major turbulence. In Einstein's zombie world no turbulence is possible. Information like

"Electric signals can be transmitted at least four times faster than the speed of light using only basic equipment that would be found in virtually any college science department....Four billion km/h...."

disturbs nobody. Rather, everybody finds statements like

"While the peak moves faster than light speed, the total energy of the pulse does not. This means Einstein's relativity is preserved, so do not expect super-fast starships or time machines anytime soon."

totally reassuring. Disappearing physics students would not even notice the problem while learning by rote. Einstein's hypnotists are working hard on various types of camouflage whereas zombies are going to start worshipping at the resurrected Einstein:


Absolute serenity and harmony in Einstein's zombie world.

Pentcho Valev


 

another_someone

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Re: Superluminal Signals in Einstein's Zombie World
« Reply #1 on: 15/04/2006 16:26:51 »
There are several experiments that have demonstrated, one way or another, that things can travel faster than light.  What has not been demonstrated (and this is what most people regard as the key issue to breaking relativity) is that information can travel faster than the nominal speed of light in a vaccum.



George
 

Offline daveshorts

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Re: Superluminal Signals in Einstein's Zombie World
« Reply #2 on: 15/04/2006 20:26:12 »
As Pencho insists on only writing to the site as a new topic with no reference to other peoples comments, and it was cluttering the place up somewhat.
I have moved all his posts to:
http://www.thenakedscientists.com/forum/topic.asp?TOPIC_ID=4002

and will continue to do so.
 

Offline DocN

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Re: Superluminal Signals in Einstein's Zombie World
« Reply #3 on: 15/04/2006 21:21:28 »
Didn't Einstein indicate the possibility that "objects" can NOT travel faster than "c"--speed of light, only that if some "object" does travel faster than "c", it can never have a velocity below "c"?  Einstein did try to disprove this part of his own theory (that objects can NOT travel faster than "c"), but didn't complete his hypothesis.  
Doc
 

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Re: Superluminal Signals in Einstein's Zombie World
« Reply #3 on: 15/04/2006 21:21:28 »

 

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