Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 146
a man might float upon mercury as easily as a corkfloats upon water. Many varieties of wood which will sink in oil, floatreadily upon water. 318. The principle that the buoyancy of liquids varies in proportion as theirspecific gravity varies, furnishes a very ready method of determining the… … 319. The Hydrometer con- Fig. 127.sists of a hollow glass tube,oa the lower part of which a sphericalbulb is blown, the latter being filled witha suitable quantity of small shot, orquicksilver, in order to cause it to float,in a vertical position. The upper partof the tube contains a scale…
Physics · Science · Technology
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