. The steam-engine and other heat-motors. Before the trouble was locatedFig. After the trouble was located Fig. 92. Question.—What caused the defects in indicator diagrams, Figs. S9 and 91? CHAPTER THE EFFECTS OF HEAT. The sensations produced by heat and its effects on bodies arematters of common experience. The hand held near the fireexperiences a sensation that we say is produced by heat. Thebest conception of heat, however, is obtained by accurately measur-ing its effects. Under its influence solids increase in temperature, grow hot, usually increase in volume, diminish
. The steam-engine and other heat-motors. Before the trouble was locatedFig. After the trouble was located Fig. 92. Question.—What caused the defects in indicator diagrams, Figs. S9 and 91? CHAPTER THE EFFECTS OF HEAT. The sensations produced by heat and its effects on bodies arematters of common experience. The hand held near the fireexperiences a sensation that we say is produced by heat. Thebest conception of heat, however, is obtained by accurately measur-ing its effects. Under its influence solids increase in temperature, grow hot, usually increase in volume, diminish in strength andchange many other physical characteristics such as the power ofconducting heat and electricity; liquids rise in temperature, changemany of their physical and chemical properties, and finally evapo-rate. In heating bodies the rise of temperature does not continueindefinitely but ceases for solids when they commence meltingand for liquids when they commence boiling. When solids areheated, the increasing rapidity of vibration of the molecules isshown by the incr
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