Re: I forget & I can't find what's a 1/2 spin, 0, 1, etc....
- From: "guskz@xxxxxxxxxxx" <guskz@xxxxxxxxxxx>
- Date: 28 Apr 2006 01:47:42 -0700
Nishu wrote:
It would be a litttle difficult to imagine the particles with spin
1/2,-1/2 as it is a concept of sub atomic particles.
Now suppose you have an arrow pointing in one direction ( <---- ). You
start rotating it until it comes in it's orignal form. You'll realize
that you have rotated 360 degrees. This arrow has spin =1. Now you have
a double headed arrow, symmtrical. You rotate it until it comes in it's
orignal form. But now you have to rotate it only 180 degrees as the
arrow has two heads( <---> )
Hard to imagine since your arrows are linear where as a spin is angular
and I believe perpendicular to the particle's travel direction....
Spin = 1, I can picture a particle which has spun angularly at 360
degrees
Spin = 2, I can't picture a 2 headed arrow *spinning* at 180 degrees
apart, how can you spin in two opposite directions? = impossible....a
spin is in one direction???
It has spin=2.
Now there are particles that needs to be rotated twice (720 degrees)
in order to get them in orignal form again.
These particles exist in sub atomic world and have spin =1/2
.
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