Cutten's pendulum recorder for psychical research
John Cutten's pendulum recorder (general view above, close-up below), for use in psychical research. This electronic device detects the movements of a pendulum which are recorded on the chart. When the pendulum moves, an electrical current is generated in a photocell and amplified by the unit feeding the recorder
Picture No
13993342
Media ID
46800544
Size
3600px x 4445px
(1.3MB)
Credit
Mary Evans Picture Library/John Cutten
Source
Unattributed photograph in the John Cutten Collection
Date
circa 1970s
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