Scientists at the U.S. Geological Survey have
developed a computer-based temperature
control and video overlay system for use
with the diamond anvil cell. The diamond-anvil
cell (DAC) is a means for subjecting
samples to very high pressures in laboratory
experiments. For example, pressures to 100
kilobars can be achieved using the device. In
addition, the DAC can subject samples to
temperatures ranging from -200 to 1200° C.