Plastic yellowing in the dark - WTF?

[Half-Saint]

I pulled my Amiga 500+ out of storage yesterday only to find out it turned piss-yellow!!1one What I don't understand is how that happened? It was kept under the bed this whole time, inside a plastic bag. I thought that the yellowing came from the exposure to UV? I keep most of my collection under the bed and I'm now scared to look at the rest of it!

SainT

[keyb_gr]

http://www.vintagecomputing.com/index.php/archives/189
http://retr0bright.wikispaces.com/

[microsoft windows]

My Gateway2000 computer yellowed in a similar way to you r Amiga. The plastic front of the tower yellowed both on the outside and the inside, and also got very brittle. It's probably just from getting old. The computer ought to work fine though.

[ricercar]

Please  see the Second Law of Thermodynamics and the Entropic Irreversibility of Nature.

Laws of Thermodynamics
1) You can't win.
2) You can't break even.
3) You can't get out of the game.

[microsoft windows]

It's pretty clear in your signature that you gave up on yellowed keys long ago...