Top Document: Einstein (1905) Absurdities Previous Document: 12. The "how does an absurd SR work" nonabsurdity. Next Document: 14. The "lasting effects of no effect" absurdity. See reader questions & answers on this topic!  Help others by sharing your knowledge According to Special Relativity, nothing can have amazing effects. There are no coordinate systems in nature; they're 'just' imaginary. But in SR, they are supposed to have real effects. One you see being talked about fairly frequently. Let a charged particle move at velocity v through an electromagnetic field. Now, imagine a coordinate system moving at that same velocity. The velocity of the charged particle is thus zero, they say, and there is no effect of the electromagnetic field. They really do say such stupid things, folks. Einstein started his SR paper in somewhat that way. Before Maxwell, there was an equation for the effect of an electric field, and another equation for a magnetic field. The magnetic one had a velocity term in it, the electric one didn't. So, they decided back then, the equations insisted that if you moved the magnetic near conducting wires there would be an induced electric current; after all, there is a velocity term in the magnetic equation. But, they said, the electric equation equation said there was no effect if you waved the wires near a magnetic; after all, there was no velocity term in the electric equation. In other words, the v in the magnetic field was not a velocity of a magnet and a wire wrt each other, but with respect to something that doesn't exist in nature: a coordinate system. You will hear it said to this very day by trained SRians, that Galilean physics says moving the wires will give you no current. And they will say that if you transform the Maxwell equations  with the SR transforms  so that the imaginary coordinate system is moving at the velocity of the magnet, there is no induced current. In other words  that they won't use  if you draw a coordinate axes system on a piece of paper and put the wires on it and move the magnet, you'll get a current, but if you tape the coordinate system to the magnet and move the magnet, you'll get no current. That is what SR says. But if you think about it deeply enough, in terms of the ratio scale versus interval scale discussion, you'll see why they have to say such idiotic things. You see, when you take the generalized form, such as (xx0) and transform it, the velocity terms drop out, or cancel each other arithmetically if you leave the equation in primed form instead of simplifying it back to the unprimed form. But if you don't mind using the degraded interval data and transform you have only one transform velocity term in the bag, and so the transform velocity term doesn't drop out. And if you already had a velocity term in the equation, at the same speed, it is true that the algebraic effect is that there might now be a zero result. Sure, subtract the velocity of an imaginary velocity from a real one (perhaps the velocity of a charged particle or a magnet) and you get a zero result if the two are the same. Try telling your mortgage company that you now owe them nothing because you subtracted an imaginary payment from the amount you owed them. Hey. If it works in physics  SCIENCE!  how can a mere finance company or bank deny your logic? User Contributions:Comment about this article, ask questions, or add new information about this topic:Top Document: Einstein (1905) Absurdities Previous Document: 12. The "how does an absurd SR work" nonabsurdity. Next Document: 14. The "lasting effects of no effect" absurdity. Single Page [ Usenet FAQs  Web FAQs  Documents  RFC Index ] Send corrections/additions to the FAQ Maintainer: Thnktank@concentric.net (Eleaticus)
Last Update March 27 2014 @ 02:12 PM
