The elements of theoretical and descriptive astronomy, for the use of colleges and academies (1872)
White, Charles J. (Charles Joyce), 1839-1917 · Philadelphia, Claxton, Remsen & Haffelfinger · leaf 75
string, the ballwill rotate about the axis of the string, while the plane in whichit vibrates will not be affected. Now, let us suppose that a pendulum is suspended at the northpole, and is made to vibrate: and let us further suppose that theearth rotates from west to east, once in 24 hours. The… … PENDULUM EXPERIMENT. 69 Will move about in the plane of the horizon, in a direction oppo-site to that in which the earth is rotating, and with an equalvelocity, thus completing one revolution in 24 hours. In Fig.28, let ACBD be the horizon of the ob-server at the north pole, and let the earthrotate…
Astronomy
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
