Hall, Edwin Herbert, 1855-1938 · New York, H. Holt and company · leaf 82
a contrivance very often used forraising heavy weights. It is a common thing to see barrelsof flour or other heavy objects loaded upon wagons by roll-ing them up a plank or a pair of rails, placed with one endon the ground and the other upon the wagon, so as to makethe ascent gradual instead of… … Fig. 48. Sometimes the force used by an experimenter or a work-man with the inclined plane is parallel to the inclined sur-face; sometimes it is parallel to the base-line of the plane,the horizontal surface of a wedge, for example. We will consider each case in order, seeking for the con- 70…
Physics
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![An illustration from Catalogue des monuments et inscriptions de l'Égypte antique / publié sous les auspices de S.A. Abbas II Helmi par la direction générale du Service des antiquités [de l'Égypte] ; par J. de Morgan, U. Bouriant, G. Legrain, G. Jéquier, A. Barsanti (1894)](https://img.insideoutlibrary.com/img/200/ia-cataloguedesmonu21egyp-321-620.webp)
