Re: aluminum machining? A q that is technical but not bicyclic

On 2008-10-24, carlfogel@xxxxxxxxxxx <carlfogel@xxxxxxxxxxx> wrote:
On Thu, 23 Oct 2008 21:44:35 -0700 (PDT), "bjw@xxxxxxxxxxxxxxxxx"
[...]
Heat dissipation is an issue for Apple, like all other
laptop manufacturers. Some previous Mac laptops
had pronounced hotspots (as have other makers).
One issue with Apple is that they like their computers
to run quiet. I suspect that in trying to make the case
a better heatsink, they are trying to avoid a noisy
CPU fan, not trying to extend the temperature
range of operation. Having had laptops with
noisy fans, I appreciate the goal of quietness.
(Fortunately, my IBM never seems to need to turn
the fan on when running Linux.)
[...]
Dear Ben,

Where does Apple claim that the aluminum body is used as a heat sink?

As far as I can tell, that's just wishful thinking in this thread.

It's unlikely that any computer presses an external metal frame firmly
against the main chip to act as a heat sink.

If they did that it would burn a hole in your leg. The machine actually
has two fans in it, although apparently Apple use slower-moving fans
with more blades at lower rpm so they are a bit quieter.

http://www.ifixit.com/Guide/First-Look/Mac/MacBook-Pro-Unibody/Page-5
.

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