Snow, Benjamin Warner, 1860- · Madison, Wis. · leaf 255
e ofwater, beneath which is placed a delicate airthermometer, Fig. 161. Although the bulb ofthe thermometer is but a few millimeters belowthe surface of the water, and therefore removedbut a short distance from the intense source ofheat above, the index of the thermometer hardlymoves, so small is… … Fig. 101. Wateri.s a poor con-ductor of hoat. CONVECTION. 251 Gases differ greatly among themselves in their power of con-ducting heat; and, as might be anticipated, those gases, the par-ticles of which are in the most rapid motion, conduct heat themost readily. Thus hydrogen, whose molecules have…
Physics
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