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Perhaps it's time to demonstrate CF in everyday life in
order there be no great mystery about some secret know only to the few that
advise the king.
For centuries the people in desert areas have used water
" ollas" to cool water. These clay vessels are fixed in a woven sling and
suspended under a shady overhang. Consider the daytime temperature can
reach 110 degrees F and nightime temp of 70 degrees F. The water temperature
inside the olla will fall to 70 degrees F as it "surrenders " heat to the clay
wall of the olla. Comparing the differential potential for giving up heat to
atmospheric conditions external to the olla is usually explained via evaporation
due to the breeze. There is NO breeze in the desert. The lowering of the olla
water temperature must be caused by what? The indians dont worry about it.. they
just enjoy the fact.
Now consider a 12" X 12" X 1" Mexican Saltillo
tile , red clay with small amounts of volcanic and flint rock. After firing
the tile, it is extremely dry. Keep the tile dry but allow it to completely cool
and sprinkle a small amout of water on the tile and watch it " boil" as it is
absorbed into the porous tile. Why does the water momentarily boil?
Another example is to pour liquid propane on the ground.
The propane goes from liquid to solid phase as you watch and finally evaporates
as off gas. A canny observer will notice the liquid " boil" as it goes from
liquid to solid phase and the solid phase expands before it goes to a gas
phase.
This is a demonstration of cold fusion in everyday life.
Grimer has an excellent paper on diphase concept of material behavior that would
surely be appreciated by the olla water crowd should they ever decide to
investigate...
Richard
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