Archive of Collections

Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
Blundell Harling F5100
Blundell HarlingEngland
about 197045 cmBlack Body Radiation

Notes: "The scales on this rule are virtually identical to those on the Thornton black body radiation slide rule, but the Blundell-Harling rule is better made."

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