He proposed the term 'phoronomia' in 1716 for the topic which was sometimes called 'rational mechanics' and now called 'theoretical mechanics'.
Ta pakkus välja mõiste "phoronomia" aastal 1716 on teema, mida mõnikord nimetatakse "ratsionaalseks mehaanika" ja nüüd ehk teoreetiline mehaanika ".