Radiation of Heat
المؤلف:
GEORGE A. HOADLEY
المصدر:
ESSENTIALS OF PHYSICS
الجزء والصفحة:
p-254
2025-11-22
26
heat may be transferred from one body to another is by radiation. If the open hand is held in front of a stove, the radiant energy sent out by the fire is received on the hand and it becomes warm, though the air may not feel warm. If a screen is placed between the. stove and the hand, the radiation is cut off. The earth receives heat from the sun in the form of radiant energy. This radiant energy is defined as wave motion in the ether which is supposed to fill all space. When the vibrations of the ether are received by a body, they set its molecules into more rapid vibration, which raises its temperature, increasing its heat.
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