As often happened in this age before modern communications , numerous physicists , scientists , and instrument makers are credited with having independently developed this same scale ; among them were Pehr Elvius , the secretary of the Royal Swedish Academy of Sciences ( which had an instrument workshop ) and with whom Linnaeus had been corresponding ; Daniel Ekström ] , the instrument maker ; and Mårten Strömer ( 1707 -- 1770 ) who had studied astronomy under Anders Celsius .
As often happened in this age before modern communications , many physicists , scientists , and instrument makers are given credit with independently making the same measurement scale ; among them were Pehr Elvius , the secretary of the Royal Swedish Academy of Sciences ( which had an instrument workshop ) , who Linnaeus had also talked to ; Christin of Lyons ; Daniel Ekström , the instrument maker ; and Mårten Strömer ( 1707 -- 1770 ) who had studied astronomy under Anders Celsius .