Original price was: $49.00.Current price is: $14.00.

His interest in control theory as a model of behavior began while he was a medical physicist at the Veteran s Administration Research Hospital in Chicago, where he designed many devices for medical research; notably, a curve-tracer for plotting isodose contours in the beam of radiation from a Cobalt-60 therapy machine.

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"Is Your Soul Allowing You To Heal?" -- All 7 Recordings in the Series (6 Hours of Audio Clearings)
William T. Powers – Behavior – The Control Of Perception
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