Adam Adamandy Kochański IPA: [ˈadam adaˈmandɨ kɔˈxaj̃ski] ⓘ (5 August 1631 – 17 May 1700) was a Polish mathematician, physicist, clock-maker, pedagogue and librarian.
He went on to lecture on those subjects at several European universities: in Florence, Prague, Olomouc, Wrocław, Mainz and Würzburg.
He wrote many scientific papers, mainly on mathematics and mechanics, but also on physics, astronomy and philosophy.
The best known of his works, Observationes Cyclometricae ad facilitandam Praxin accommodatae, is devoted to the squaring the circle (or alternatively, the quadrature of the circle) and was published in 1685 in the leading scientific periodical of the time, Acta Eruditorum.
He suggested replacing the clock's pendulum with a spring, and standardizing the number of escapements per hour.