mitchr...@gmail.com <
mitchrae3323@gmail.com> wrote:
How are they about spin?
They are categories of types of particles instead.
They have no spin speed.
Your complete ignorance of real physics is showing again.
Spin really is angular momentum. In its simplest form:
If you fire a spin polarised electron beam into a taget
your target will start to rotate.
The law of conservation of angular momentum won't add up
if you don't include spin as real angular momentum.
The usual genius thought of this first.
Since he visited Leyden regularly he told some experimentaist there
about it, and they decided to confirm.
It is known as the Einstein-De Haas effect.
Originally it was about orbital angular momentum,
but since most of ferromagnetism is from spins
it applies to spin angular momentum as well,
Jan
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