🚀 go-pugleaf

In article <1990Dec14.213730.10078@spool.cs.wisc.edu> peng@chaource.cs.wisc.edu (PENG) writes:
>I hope this has not been asked before.  On the December issue of Byte (p.132),
>there is a short article on an interesting cooling device, which can be
>mounted on a CPU and is able to cool the chip down to 0 degree centigrade.
>This device, according to Byte, is a Peltier effect device, which is
>"a thermoelectric cooling system based on the principle that passing a current
>between two physically connected, dissimilar materials produces cooling on one
>side and heat on the other."  I am not quite sure if I know what this
>sentense is talking about.  Can someone knowledgeable elaborate this a little
>bit?
>

The devices mentioned are fairly common in the opto-electronics world and are
usually used to cool laser diodes used in opto transmission systems.  They 
are, in the most simple terms, a reverse thermocouple.  These things come in a
bunch of sizes. The biggest I have seen is about two inches square. They can
freeze water, although they suck a lot of power.
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