What's that on Euler's head? Does the head covering shown in Emanuel Handmann 1753 painting signify scholarship?
When did the word "Real number" begin to be used as an official terminology to refer to both rational and irrational numbers?
Clairaut's proposed correction (reported as "D'Alembert's, Clairaut's and Euler's corrections") to the Newtonian inverse-square law of gravity
Did any mathematicians of the time (the 17th Century) try out an intermediary between Bernoulli's and Nieuwentijdt’s infinitesimals?
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