Darren New escreveu:
> Warp wrote:
>>   (And no, I haven't the faintest idea what "spin" means. I just read
>> wikipedia. :P )
> 
> "Spin" is a fascinating concept related to symmetry. A "spin 1/2" 
> particle means if you turn it 180 degrees, it looks the same. So a "two 
> of diamonds" playing card would be "spin 1/2" - it looks the same right 
> side up as upside down. (Discounting, of course, that it's 3D, so has a 
> back that's different from the front.)
> 
> An "ace of spades" has "spin 1" - if you turn it 180 degrees, the spade 
> in the middle will be pointing down instead of up, so you have to turn 
> it 360 degrees.
> 
> And yes, a "spin 2" particle really is as strange as it sounds. You have 
> to turn it around 720 degrees before it's symmetric again. Don't ask me 
> how that works out.

Wonderful explanation.  So far, from my days of chemestry in college, 
all I (thought I) knew was that spin 1 was an electron spinning in one 
direction and spin -1 in the other direction, whatever it be. :P

>>   If something moves to the other side of the cosmological horizon (from
>> our perspective), is the information "lost"?
> 
> Maybe. I don't know. It can't affect us, but it can affect other things 
> in the local area. Technically, the particles *could* affect things a 
> spacelike distance away, which is what all the yadda about "quantum 
> teleportation" is about.

quantum entanglement!  Beam me into a blackhole! :D

>>   I think that you would notice everything being warped.

Including your body! :P

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