Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 322
er ofsides, is made into an air thermometer,in the manner described in speaking ofthe last apparatus; the sides are variouslycoated; it fits loosely into a prism of thesame form, but wanting one side; in thefigure, a b c e, represents the envelopingsurface, and m n op, the air thermometer.To show… … Monthly Conversation Meeting. 309 heat. Suppose the side of the air thermometer which is the worstabsorbent of heat, to be exposed to the source of heat, the air withinis expanded, and the position of the liquid in the tube is marked byan index; a better absorbent is exposed, and the liquid rises…
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