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Old 03-29-2023, 01:36 PM   #1178 (permalink)
freebeard
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look up "electron trees".
https://en.wikipedia.org/wiki/Lichtenberg_figure

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Radiology technicians who were working before 1950 have an increased cancer risk
In 1950 I was looking at my feet through a fluorocope at a shoe store.

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https://en.wikipedia.org › wiki › Shoe-fitting_fluoroscope
Shoe-fitting fluoroscope - Wikipedia
Shoe-fitting fluoroscopes, also sold under the names X-ray Shoe Fitter, Pedoscope and Foot-o-scope, were X-ray fluoroscope machines installed in shoe stores from the 1920s until about the 1970s in the United States, Canada, United Kingdom, Australia, South Africa, Germany and Switzerland. In the UK, they were known as Pedoscopes, after the company based in St. Albans that manufactured them.
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