Open AccessThe Effect of Humidity on the Length of Invariable Pendulums
Author(s) -
Valliant H. D.
Publication year - 1969
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1969.tb00242.x
Subject(s) - pendulum , centroid , humidity , position (finance) , series (stratigraphy) , physics , geology , classical mechanics , mathematics , meteorology , geometry , astronomy , paleontology , finance , economics
Summary A series of tests with the Canadian Pendulum Apparatus has revealed a definite relation between observed errors in gravity and humidity. These tests suggest that absorption of water by the agate bearings located on the pendulums tends to alter the position of the pendulum's centroid. This difficulty has been overcome by storing the pendulums in a dessicated chamber.