They were all passionate about scientific experiments and formed what was later called the "Académie Montmor", one of the scholarly societies which in 1666 gave rise to the Académie des sciences.
They were all passionate about scientific experiments and formed in 1657 the "Académie Montmor", which was based in his house. It was one of the scholarly societies which in 1666 gave rise to the Académie des sciences.