SC - Ice Cream and Martha Washington

[David Friedman]

Adamantius writes:

>Again, freezing food with ice requires an endothermic reaction,
>the technology for which was, I believe, unknown in period.

The _Ain I Akbari_ describes a chemical technique for producing cold water,
depending on the (I presume endothermic) process of dissolving saltpeter in
water. When the idea of using salt with ice to absorb heat was originated I
don't know.

David/Cariadoc
http://www.best.com/~ddfr/


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