 | University Press. 1907. Détermination expérimentale de la valeur du mètre en longueurs d'ondes lumineuses. Paris : Gauthier-Villars et fils, 1894. (French translation... 47 KB (4,799 words) - 10:55, 6 April 2024 |
 | pendulums was slight changes in length due to thermal expansion and contraction of the pendulum rod with changes in ambient temperature. This was discovered... 122 KB (14,432 words) - 11:39, 18 April 2024 |