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Introduction
Table salt and
many other chemicals can affect the freezing and boiling
points of water. This is the concept behind many
products in the market such as Anti-freeze, ice-melters,
etc.
However, those are not
the only practical applications of this project. Many
years ago, ice cream manufacturers used to make ice
cream without electricity and refrigerators. How did
they do that?
You may even want to
create a low temperature for an experiment without using
your refrigerator.
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