Skiotikonbild from Department of Photography at Royal Technical High Coaln. Use by Professor Helmer Bäckström as teaching material. Bäckström was Sweden's first professor in photography at the Royal Institute of Technology 1948-1958. The image shows (possibly) electrical voltage fields.
Size: 2267px × 2205px
Photo credit: © BTEU/TEKNISKA / Alamy / Afripics
License: Licensed
Model Released: No
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