EP-95 ON THE MOON WITH APOLLO 16
FIGURE 27.-Heat Flow Experiment.
Probes are placed in two holes drilled in the lunar surface with the
drill shown in figure 26. One hole is shown in the figure as a
section to show the various parts. The gradient is the difference of
temperature at two points divided by the distance between the points.
Heat flow is determined by measuring both the gradient and the
thermal conductivity; heat flow is the product of gradient and
thermal conductivity. The symbol T/C indicates thermocouples that are
present in the upper part of the holes.
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