Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 289
cooking process continued under theseconditions ? 7. Two similar cylindrical rods, one of copper and the other of lead,are covered with wax, and an end of each is inserted through a cork inthe side of a vessel containing boiling water. At first the meltingadvances more rapidly along the lead rod,… … CONVECTION CURRENTS 279 316. Convection Currents. The water in the test-tube(§ 312) remains cold at the bottom when heated at tlie top. Ifthe heat is applied at the bottom, the mass of water is quicklywarmed. The explanation is that in the latter case the heatis distributed by currents set up…
Physics
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