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The Archives of the London School of Hygiene and Tropical Medicine

ID: 213328228

linkhttp://www.lshtm.ac.uk/library/archives/ calendar_today08-11-2010 16:47:23

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5 months ago

Our #SomethingBig and very heavy is this MADAS calculator. MADAS is derived from the initial letters of Multiplication, Automatic Division, Addition, & Subtraction. This one was used by Professor Jenny Roberts and we believe dates from 1950s-60s. #Archive30

Our #SomethingBig and very heavy is this MADAS calculator. MADAS is derived from the initial letters of Multiplication, Automatic Division, Addition, & Subtraction. This one was used by Professor Jenny Roberts and we believe dates from 1950s-60s. #Archive30