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Old 03-18-2005   #8 (permalink)
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Re: antimatter

Quite true! See PCT theorem and so on. Our world is made of one, it could just as well be made of the other. One of the Cosmological Riddles is about how the choice came about, though I personally wouldn't rule out different galaxies being one or the other, even at a roughly 50-50 distribution.

One slight remark on what I said yesterday: offhand, I would expect light polarization to be inverted. If you could handle a crystal of some asymmetric molecules, dissolving it in anti-water after having noted whether it is L or R, and then shining linear polarized light through the solution, you should see the opposite rotation compared to the normal molecule of the same geometry.
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