Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 50
there is no sliding. A wheel, where it rests on a surface, is slightly flattened, and it also makes a depression in the surface. As it rolls along it must cont^iually climb out of this depression. But rolling friction is much smaller than slidincr friction. o In ordinary wheels,however, sliding…
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-160-264@90.webp)
