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On Mon, 14 Sep 1998 13:28:48 -0600 (MDT) crawford j maccallum
<mccallum@unm.edu> writes:
Near my brother's house in Tonopah, NV, is an entrance to an old mineall the time!
from which a strong stream of air exits. But the fact is it blows out
circulation must result from convection currents within the mine.
These could be caused by internal heating sources such as nearby
magma pools or radioactive sources in the process of decay. Is it
possible to enter the mine and track down the origin of the heat source?