MosS Mass spectrometry rotary calculator or ready reckoner

Made:: 1967-1972 in Hemel Hempstead

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MosS Mass spectrometry rotary calculator or ready reckoner made
Science Museum Group
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MosS Mass spectrometry rotary calculator or ready reckoner made by Data Instruments Limited for Perkin-Elmer with instruction booklet, c.1970. Used to determine the mass of elements from the graphic paper output produced by early mass spectrometers.

Details

Category:: Mathematics

Object Number:: 2001-782

Materials:: plastic, paper and complete

Measurements:: overall: 10 x 50 x 50 mm

type:: ready reckoner (mass spectroscopy)

credit:: Mr Barry Oliver

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MosS Mass spectrometry rotary calculator or ready reckoner

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