Andrews, Ernest John, 1863-, Howland, Howard Newell, 1865- joint author · New York, London, The Macmillan company · leaf 163
heat from a hot stove may easily befelt when several feet away. In such cases it is evidentthe heat is not transferred by conduction, because when ametal screen is placed before the stove the heat is no longerfelt, although the metal is a far better conductor than air.Nor can it be by convection,… … IS?t^^ Fig. 70. §§ 251-253] TRANSFERENCE OF HEAT 149 by radiation that tlie heat of the sun affects us. Allbodies are constantly radiating heat energy; but as theyalso receive heat energy from surrounding bodies, theirtemperature is not necessarily lowered. 252. Radiant Energy. — In such case,…
Physics
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