Archive of Collections

Details and Image

TypeModel No.MakerCountryConstruction
DateScale LengthArea of Use
Autonetics Photon
North American Aviation (NAA)USA
c. 1967dia = 23 cm Blackbody radiation

Notes: 1) Very rare slide rule designed for internal use at NAA 2) Calculates the incremental photon emittance for a blackbody 3) This rule was the only one capable of calculating photon emittance in a finite spectral band over a span of 45 orders of magnitude!

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