[sdiy] Peltier Elements

[Magnus Danielson]

From: ASSI <Stromeko at compuserve.de>
Subject: Re: [sdiy] Peltier Elements
Date: Tue, 13 May 2003 22:36:16 +0200

> On Tuesday 13 May 2003 13:33, Czech Martin wrote:
> > Condensation is a big point, for Thermostream experiments
> > at -40C I had lot of icing problems (outside the stream).
> 
> You also get ESD problems inside the stream unless you ionize the air...
> 
> > The question is also how low the temperature must be.
> > If the curves to be observed would be linear with little
> > deviation, it would be enough to mesure at 25C and 55C
> > to get a good aproximation of what's going on.
> 
> I think 10/40/70°C would be quite useful and not too difficult to 
> achieve.

With peltier elements you might even be able to get a -20 °C sample.

> Never forget: If you want to prove a linear dependency, make no more 
> than two measurements. ;-)

Indeed. It is even easier just to assume it. If you want to take support in
theory you better either define it or postulate it. The benefit of defining it
is that if it isn't you can either say it doesn't belong to the system or there
is a gross error since it obviously doesn't match common sense logic based on
the collected knowledge. With this at hand you may be so succsessfull to
refute facts that it can survive you by a couple of hundred years. Once you
have ruled it out from common sense you can then divert attention to some
higher power for which you just happends to be the profet, high preist or other
form of practioner. At the office I often pull of stunts of analog black magic
to much amusement.

Cheers,
Magnus - who is otherwise silently enjoying this thread