Re: "Opposite spin"

From	Odd Bodkin <bodkinodd@gmail.com>
Newsgroups	sci.physics
Subject	Re: "Opposite spin"
Date	2016-09-25 16:44 -0500
Organization	Aioe.org NNTP Server
Message-ID	<ns9geq$7kc$1@gioia.aioe.org> (permalink)
References	<0b437d34-5d4c-486f-925f-6552e7d06b97@googlegroups.com>

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On 9/25/2016 6:19 AM, john wrote:
> People talk about "opposite spin".
> Look at a Ferris wheel from one side,
> it is rotating one way.
> Look at it from the other side,
> it is rotating the other way.
> Just perspective.
>
> Same for a merry go round. Look at it
> from above- rotating one way.
> Look at it from below- other way.
> Just perspective.
>
> Plain spin has no "opposite".
> It's just spin.
>
> BUT.
>
> Combine the two spins- lock them
> together so X rotations of one will
> always be Y rotations of the other.
>
> Put the Ferris wheel on the merry go round
> so every time the merry go round
> completes a rotation, the bottom bucket
> on the Ferris wheel has gone around
> once, and is back. Or has gone around
> twice, which is what I think happens
> in atoms, but the "Hubius helix" is the
> path for just once (a figure of eight
> lying on a sphere from North Pole to
> south.) it was DERIVED from electron data.
>
> Anyway, make the merry go round go
> backwards while keeping
> the Ferris wheel the same-
> THEN you have a true opposite spin.
> (Which is antimatter.)
>
> Otherwise, spin is just spin. No such
> thing as opposite.
>

I think it would help if you knew what spin-up and spin-down means. It 
does not mean looking along the axis from the other direction.

In classical mechanics, orientation of a spinning object is arbitrary in 
3D space. One way you can ask this is, suppose there is something that 
determines a specific direction at the location of spinning object, like 
an electric or magnetic field; how big is the projection of the object's 
spin along the line defined by this field at that point? As you may 
know, the size of the projection related to the angle between those two 
directions (it's the cosine of the angle). In classical mechanics, that 
projection can take on any value between 1 and -1.

But for fermions with spin 1/2, we find out experimentally that there 
are only two orientations: one where the projection is positive (the 
cosine is sqrt[3/4]), and one where the projection is negative (the 
cosine is -sqrt[3/4]).

Turning around and looking at it from the other direction does not 
change these results at all, because it's not the viewing angle of the 
observer that counts at all. It's the angle between the object's spin 
and the physical characteristic of the system that sets a particular 
direction. Atoms have fields that set that particular direction, and 
then electrons will take slots with either positive or negative 
projections with respect to THAT direction.

Your looking at ferris wheels from opposite sides uses similar words, 
but has no other relevance or bearing. But this is how you attempt, 
John, to guess what physics terms like spin mean -- "sounds something 
like this other thing, must be related" -- because you DON'T READ.

-- 
Odd Bodkin --- maker of fine toys, tools, tables

Thread

"Opposite spin" john <johnsefton288@gmail.com> - 2016-09-25 04:19 -0700
  Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-25 16:44 +0000
    Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-25 10:05 -0700
      Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-26 01:26 +0000
        Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-26 05:10 -0700
          Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-26 05:16 -0700
            Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-26 16:57 +0000
              Re: "Opposite spin" "hanson" <hanson@quick.net> - 2016-09-26 10:11 -0700
                Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-26 12:20 -0700
                Re: "Opposite spin" "hanson" <hanson@quick.net> - 2016-09-26 12:37 -0700
                Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-26 13:34 -0700
                Re: "Opposite spin" "hanson" <hanson@quick.net> - 2016-09-26 14:58 -0700
                Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-27 06:11 -0500
                Re: "Opposite spin" poraty350@gmail.com - 2016-09-27 04:42 -0700
    Re: "Opposite spin" poraty350@gmail.com - 2016-09-27 04:39 -0700
  Re: "Opposite spin" Double-A <double-a3@hush.com> - 2016-09-25 13:15 -0700
    Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-25 13:38 -0700
      Re: "Opposite spin" Double-A <double-a3@hush.com> - 2016-09-25 14:50 -0700
        Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-25 17:37 -0700
          Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-26 08:13 -0500
            Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-26 06:52 -0700
              Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-26 09:05 -0500
              Re: "Opposite spin" Double-A <double-a3@hush.com> - 2016-09-26 14:43 -0700
  Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-25 16:44 -0500
  Re: "Opposite spin" "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-09-25 15:35 -0700
    Re: "Opposite spin" "hanson" <hanson@quick.net> - 2016-09-25 16:09 -0700
  Re: "Opposite spin" "nuny@bid.nes" <Alien8752@gmail.com> - 2016-09-26 15:06 -0700
    Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-26 17:28 -0700
      Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-27 01:07 +0000
        Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-26 19:46 -0700
          Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-27 03:13 +0000
      Re: "Opposite spin" "nuny@bid.nes" <Alien8752@gmail.com> - 2016-09-26 18:18 -0700
        Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-26 19:49 -0700
          Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-27 09:03 -0500
            Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-27 07:08 -0700
              Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-27 09:21 -0500
                Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-27 07:41 -0700
                Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-27 10:12 -0500
                Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-27 11:18 -0500
                Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-27 09:29 -0700
                Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-27 12:10 -0500
                Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-27 10:18 -0700
                Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-27 12:24 -0500
                Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-27 13:07 -0700
                Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-27 16:06 -0500
                Re: "Opposite spin" poraty350@gmail.com - 2016-09-28 00:08 -0700
                Re: "Opposite spin" poraty350@gmail.com - 2016-09-28 00:01 -0700
                Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-29 01:51 +0000
                Re: "Opposite spin" HVAC <mr.hvac@gmail.com> - 2016-09-29 06:23 -0700
                Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-29 07:41 -0700
          Re: "Opposite spin" "nuny@bid.nes" <Alien8752@gmail.com> - 2016-09-27 17:51 -0700
            Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-27 18:05 -0700
              Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-28 03:42 +0000
              Re: "Opposite spin" "nuny@bid.nes" <Alien8752@gmail.com> - 2016-09-28 02:24 -0700
              Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-28 09:36 -0500
                Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-28 10:54 -0700
                Re: "Opposite spin" Odd Bodkin <bodkinodd@gmail.com> - 2016-09-28 14:37 -0500
              Re: "Opposite spin" "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-09-29 11:54 -0700
                Re: "Opposite spin" "hanson" <hanson@quick.net> - 2016-09-29 11:59 -0700
            Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-27 18:12 -0700
              Re: "Opposite spin" john <johnsefton288@gmail.com> - 2016-09-27 19:10 -0700
              Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-28 03:49 +0000
    Re: "Opposite spin" moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-09-27 01:02 +0000
  Re: "Opposite spin" Sylvia Else <sylvia@not.at.this.address> - 2016-09-27 15:24 +1000
    Re: "Opposite spin" noTthaTguY <abu.kuanysh05@gmail.com> - 2016-09-27 14:07 -0700

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