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From: John Larkin <jl@997PotHill.com>
Newsgroups: sci.electronics.design
Subject: Re: A new type of fridge, maybe also for cooling electronics?
Date: Fri, 05 Apr 2024 07:18:32 -0700
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On Fri, 5 Apr 2024 09:44:14 +0100, Clive Arthur
<clive@nowaytoday.co.uk> wrote:

>On 05/04/2024 06:01, Jan Panteltje wrote:
>> Elastocaloric cooling: Refrigerator cools by flexing artificial muscles
>>   https://www.sciencedaily.com/releases/2024/04/240402192607.htm
>> 
>> Picture of the thing here:
>>    https://www.uni-saarland.de/aktuell/hannover-messe-elastocaloric-cooling-refrigerator-30894.html
>> 
>> cooling the bitcoin machines?
>> ;-)
>
>Stretch an elastic band and it will heat up.  Allow it to dissipate this 
>heat, then allow it to relax and it will cool down below ambient. 
>Easiest way to feel this is on your philtrum.
>
>I claim prior art from my schooldays.

I remember speculation about rubber-band air conditioners, ditto
school days. It's still not a bad idea, if some efficient elastomer
could be invented.