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 115
110 WELLSS NATURAL PHILOSOPHY. Fig. 94. Describe theconstructionand advantageof HuntersScrew. Fig. 95. … mous energy by means of tlie momentum of two heavy balls attached to theend of a long lever, or handle, as is represented in Fig. 93. A force of sev-eral tons may thus be applied at one ellbrt. When the thread of a screw^dlesslcr^w f ^^^ks in the teetii of a wheel, asis shown in Fig. 94, it…
Physics · Science · Technology
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