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Correcting Kyle Pie (are You Still Doctor?) About Superlum. Comm

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Posted by Alexander on October 15, 2001 18:00:59 UTC

Having too little time (too much research, teaching, organizing, etc.) I can only correct minor amount of someone's errors.

This time someone claiming to be a "doctor of physics" makes mistakes in elementary physics.

In discussion about superluminal communication below Kyle suggests to use ultralight rigid rod for FTL signal transfer. Hit (or shift) one end of the rod and a wave will propagate along it with FTL speed, if a rod is light enough ("Dr" Kyle says it is a matter of technology to make a rod out of nanotubes or other superlight material to achieve FTL communication).

INCORRECT. As "Dr" should know, atoms consist of a protons and neutrons in nucleus and electrons orbiting them (see physics textbooks). Therefore pushing one atom makes electric field of protons and electrons to move. Even if you can find lighter than hydrogen atom (which is impossible) in order to reduce inertia, it still takes time for the electric field to reach from one atom to another. Because electric field propagates with c, NO FTL CAN BE POSSIBLE THIS WAY EVEN WITH MASSLESS ROD, not to say about rod consisting of atoms (then it is way slower regardless type of atoms you use - wave travels with just a speed of sound in that solid).

Another way of suggested FTL by "Dr" Kyle is to use a laser (or flashlight) and to rotate it with high speed. Again no way. Waving flash light at night sky from one corner of universe to another in 1 second indeed makes photons to arrive at those corners with 1 second difference in travel time. But those are photons FROM THE SAME SOURCE. NO PHOTONS OR ANY OTHER SIGNAL IN THIS EXPERIMENT TRAVELS FROM ONE CORNER OF UNIVERSE TO ANOTHER IN 1 SECOND. The fact that shadow, or a light spot, or intersection of straight lines, or any other NON-MATERIAL object CAN move FTL does NOT mean that the material carrier can.

"Dr" Kyle also has problems with algebra: 1 gram mass accelerated to the speed v=0.99c has total energy NOT 9x1015 Joules as "Dr" Kyle claims, but much less: about 6.38x1014 Joules (which consists of 9x1013 Joules of rest mass energy and 5.48x1014 Joules of kinetic energy.)

There are many other errors in "Dr" claims below -somehow thir "signature" is much more typical for a popular sci-fi literature loving teenager but rather strikingly odd for a someone claiming to be a physicist.

Kyle, why don't you say that you are NOT a physicist in order not to discredit the level of a Ph.D. degree (which by your example seem to not go even into elementary algebra not to say physics)?

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