On Thu, 2010-08-12 at 01:32 -0400, Robert Myers wrote: > A black object will more readily exchange heat by radiation with its > surroundings than a white object. If your computer case is hotter > than other objects it is receiving radiation from, a black case will > radiate more effectively, just as it will absorb more effectively if > the surrounding objects are hotter. A green object will be somewhere > in between. I'd be quite surprised if this were very noticeable. Considering the usual shiny black computer case, versus an optimal black body radiator. As someone who lives in a hot country, where it can easily reach 50 degrees in my workroom, though it's more common to be in the 40s, in summer (Celsius). I can't say that I've noticed any significant temperature difference when I've handled the white- or black-cased computers. It's much more likely for the case to absorb the ambient heat, than help to cool the PC down. But I can certainly tell a big difference if I touch one that's had the sun hitting it. At any rate, it's unusual to use the case as the heatsink, unless you're buying one of those expensive silent PCs. It's the fans that do the heat dissipation. I can't help but think that this thread, long ago, descended into theoretical absurdity. ;-) -- [tim@localhost ~]$ uname -r 2.6.27.25-78.2.56.fc9.i686 Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines