OTish :D Colors of Cases for Fedora was: Re: Open Letter

Tim ignored_mailbox at yahoo.com.au
Thu Aug 12 07:30:43 UTC 2010

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.  ;-)

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