Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 166
r.as in Fig. 186tt, but on wetting it they cling together (Fig.186c). This is due to the surface film which contracts anddraws the hairs togetlier. That it is not due simply to beingwet is seen from Fig. 186&, which shows the brush in thewater but with the hairs spread out. A wire sieve is wet…
Physics
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