Vol. s3-43, Issue 254, 1892February 01, 1892 EDT
Use of a Free Pendulum as a Time Standard
Use of a Free Pendulum as a Time Standard
T. C. Mendenhall,
Mendenhall, T. C. (1892). Use of a free pendulum as a time standard. American Journal of Science, s3-43(254), 85–90. https://doi.org/10.2475/ajs.s3-43.254.85