Perrin worked throughout with the ‘billiard ball’ version of the kinetic theory. In his models, molecules are perfectly hard, perfectly elastic spheres, taken as a relevant approximation.

Klodian Coko Jean Perrin and the Philosophers’ Stories: The Role of Multiple Determination in Determining Avogadro’s Number

This paper focusses on the researches of Jean Perrin in the 1900s, in particular his use of Brownian motion to produce evidence of the existence of atoms and in favour of the kinetic …

Personal correspondence from Perrin to colleagues; a collection of personal items including photographs, negatives, miscellaneous coupons and bank statements, and a chess book; and …

Abstract: In this article, a study is carried out around the Perrin sequence, these numbers marked by their applicability and similarity with Padovan’s numbers. With that, we will present the …

There are two components to our proof of Perrin’s theorem: the combinatorial interpretation of the Perrin numbers and the use of rotation. Both of these aspects can be explored further by the …

We have repeated Perrin’s 1908 experiment for the determination of Avogadro’s number by determining the mean square displacement of small particles undergoing Brownian motion. …