Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
)eriments, it was con-cluded that liquids were absolutely non-con-ductive, but later experiments prove thatthey do conduct heat, but only to a verylimited degree—except mercury ; which, being a metal, is a good con-ductor. … 156 HEAT AND STEAM-ENGINE. 247. Figure 9.—Heat in liquids not equalized by con-duction.—When water is to be heated in a vessel, it is indispensablethat the heat be applied at the lower part of the containing dish ; aswill be presently explained. (For explanation of this figure, see 253.) Fig. 9.…
Physics · Astronomy
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