The pendulum of the Mendenhall apparatus was made of a copper-aluminum alloy, with a flat stem supporting a lenticular bob. It had a period of about 2 seconds, so designed that a coincidence between ...

Thus, the 15th pendulum (shortest) undergoes 65 oscillations. Our apparatus was built from a design published by Richard Berg [Am J Phys 59(2), 186-187 (1991)] at the University of Maryland.

The other improvement consists in the combination with a regulating weight applied to the middle of a wooden pendulum rod, of a compensating apparatus, consisting of metal rods of such length, and ...

The Foucault pendulum is named for Léon Foucault (1819-1868), the French physicist who first devised the apparatus in the mid-19th century. It is a deceptively simple device used to illustrate ...

This article was originally published with the title “ Small-Scale Apparatus for Foucault's Pendulum Experiment ” in SA Supplements Vol. 55 No. 1415supp (February 1903), p. 22672 doi:10.1038 ...

IN that early apparatus I recently described, you will remember that the balance, after being set swinging in one direction, had its motion completely destroyed, and was then set swinging in the ...