On 22/11/2012 12:59 PM, Timothy Sutter wrote: > Archimedes Plutonium wrote: > >> Timothy Sutter wrote: > >>>>> and, it really does seem as if >>>>> the little whizzers =DO= -have- "flight paths" >>>>> and that they are -not- simply in >>>>> 10000000000000000000000000000000000000000 >>>>> places at the same time.... > >>>> just look at these images... >>>> http://en.wikipedia.org/wiki/File:Various_Spirograph_Designs.jpg >>>> see, you don't just see the cloud of uncertainty >>>> you see distinctly flight paths... > >>> the thing about the spirograph images is that they are =flat= > >>> and the atom travails in -volume- and so, 3D images >>> and you really would wonder if the shapes of snowflakes -are- >>> sort of like the shapes of certain electronic flight paths... >>> "but isn't i true that no two snowflakes are alike?" >>> have you really looked at all of them? > >>> STOP > >> Hi Tim, I will stop for 3d volume. > >> It has been a long time since I took apart an electric motor of its >> windings of copper wire. > >> Tell me, are the windings close to being spherical in all? And are the >> windings of 1 long copper wire or are they of 2 long copper wires or >> more? > > i just happen to have the motor of > an olde box window fan in the basement. > > it's a lot of copper wire and these things called > "bushings" that seem to be copper as well. > > it doesn't look too much like this one > but it resembles it a little bit.
The box fan motor is likely a single phase shaded pole induction motor. Such a motor will have no commutator as shown in your permanent magnet DC motor (it also will not have permanent magnets and the rotor will be quite different in general). The "bushings" are "oilite (sic?)" bearings which are typically copper or a copper alloy which is sintered and holds oil. They are cheaper than ball bearings but don't generally last as well.. However, these bushings have nothing to do with the electrical/magnetic operation of the motor. As for Archie's question- No- the windings are not spherical at all. As usual he is off in his own little world -where facts are not important.