On Thu, Aug 12, 2010 at 1:02 AM, Tim <ignored_mailbox@xxxxxxxxxxxx> wrote: > Tim: >>> Are your cases under bright lighting, or in the sunlight? If not, I'd >>> suspect that casing colour wouldn't be significant. Colour's more of an >>> issue about absorbing heat, than radiating it. > > g: >> you left out the 'basic of the theory'. >> >> color/colour would/may be less relevant compared to if case is a >> dark green or light green. >> >> dark colors or light colors equating to black or white. > > Fair enough. A dark body in sunlight is going to get hotter, much > easier, than a light body (such as a computer next to the office > window). And since we're talking computers, and not jet engines, I'm > fairly sure that heat getting into a box is more of an issue than > radiating heat. It's the fans that will be doing that much more than > the case. > > Going off on a tangent, only a little while ago I was at a product > demonstration for a professional Panasonic video camera, and got > castigated for daring to ask whether they'd considered making the camera > in something other than black. While black is good for not upsetting > your arty lighting, I pointed out that when we take a black camera > outdoors in the Australian summer sun, it roasts in minutes. It gets > too hot to handle, and the camera overheats. They just didn't get it. > They didn't see it as a problem, and also thought that because it's > mostly digital, heat induced noise won't be an issue. Idiots! The > first stages are analogue, and they're highly sensitive. > 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. If you put your black computer next to a window on a cold winter night, it will run cooler than a white computer in the same position. Robert. -- 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
