These complex beauties are from a collection of Nuclear slide rules and dials gathered together by ORAU (Oak Ridge Associated Universities). They’ve got dials to calculate radiation dosage, Nuclear bomb effects, Nuclear weapon effects, x-ray exposure, decay rates, treatment times and Radium exposure. A much more useful collection than mine, which mainly consists of vintage promotional pieces!
See the full collection of Nuclear slide rules here and see some of mine here.
darwinfish105 schreibt hierzu: “Power shortage is a gradual recovery. The lights are still turned off some billboards, but huge screen display resumes. There was going back my favorite the shine of Shibuya. Fear of radioactive contamination can not stop heartbeat of the city.”
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