Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 257
of the conducting powers of metalsmay be made by twisting together two or more wires, and attaching to them a series ofballs by means of wax, as inFig. 170. If a lamp be ap-plied at one end, the wax willbe melted as the heat flowsalong the wires, and the ballsfall off one by one. The better… … Fig. 170. GOOD AND BAD COXDUCTOBS. 247 noticed that the first ball does not necessarily drop sooneston the bar from which the most balls are finally melted.The velocity of the temperature wave will evidently begreater in proportion as the specific heat is smaller. Theproperty upon which the rate of…
Physics
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