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> Question: How do you make mercury switches without mercury?
Use an accelerometer instead.
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Eero Ahonen wrote:
> You could use eg. A/C -style heat pumping to get the heat out of the
> sealed box.
Given there are military laptop computers that work in the desert, or in the
swimming pool, or etc, I don't think that's the only answer. I don't know
how they do it, but it just looks like a robustified rubberized laptop
computer, but you can dunk it in the river as you wade across and use it on
the other side.
--
Darren New, San Diego CA, USA (PST)
Insanity is a small city on the western
border of the State of Mind.
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Darren New wrote:
> Eero Ahonen wrote:
>> You could use eg. A/C -style heat pumping to get the heat out of the
>> sealed box.
>
> Given there are military laptop computers that work in the desert, or in
> the swimming pool, or etc, I don't think that's the only answer. I don't
> know how they do it, but it just looks like a robustified rubberized
> laptop computer, but you can dunk it in the river as you wade across and
> use it on the other side.
>
They don't use CRT's (which I referred to, while talking about pumping
the heat) :-).
Those mil-spec laptops ain't the fast ones. They are the ones that
produce mininum possible amount of heat and use most of the surface to
get it out, ie. use the whole laptop as a massive heatsink. They also
weight ~1,7 metric tons each.
-Aero
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Eero Ahonen wrote:
> They don't use CRT's (which I referred to, while talking about pumping
> the heat) :-).
I know. I just had to follow up on *some* message. :-)
> Those mil-spec laptops ain't the fast ones. They are the ones that
> produce mininum possible amount of heat and use most of the surface to
> get it out, ie. use the whole laptop as a massive heatsink. They also
> weight ~1,7 metric tons each.
Yeah, well, when your other piece of equipment is a tank, it doesn't seem so
bad. :-)
--
Darren New, San Diego CA, USA (PST)
Insanity is a small city on the western
border of the State of Mind.
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> Those mil-spec laptops ain't the fast ones. They are the ones that
> produce mininum possible amount of heat and use most of the surface to
> get it out, ie. use the whole laptop as a massive heatsink.
Also they are going to contain much higher spec components that are tested
to much higher temperatures.
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scott wrote:
>> Those mil-spec laptops ain't the fast ones. They are the ones that
>> produce mininum possible amount of heat and use most of the surface to
>> get it out, ie. use the whole laptop as a massive heatsink.
>
> Also they are going to contain much higher spec components that are
> tested to much higher temperatures.
I'm also guessing you can't buy one of these for £300?
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Eero Ahonen <aer### [at] removethis zbxtnetinvalid> wrote:
> Warp wrote:
> >
> > At least CRTs require air circulation. I actually don't know about LCDs.
> >
>
> I don't think so, I'd say they just require pretty intensive cooling.
Not really, in my experience they run very well hot. The only problem I ever
came across with a monitor in an enclosure was with one in a steel foundry that
had air vents for cooling. Over the years metal dust accumulated around the
coils and shorted them out.
Stephen
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Invisible wrote:
>
> I'm also guessing you can't buy one of these for £300?
You might, but that would be ooold one.
-Aero
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Invisible wrote:
> I'm also guessing you can't buy one of these for £300?
I'm guessing closer to $10,000, but since it's the military, $30,000.
--
Darren New, San Diego CA, USA (PST)
Insanity is a small city on the western
border of the State of Mind.
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