A 2015 study by China's Dalian University found that owls fly silently because their feathers convert a biproduct of mechanical energy into (What?) instead of noise?
Heat as energy Heat as a transfer of energy Heat Sources of heat Warmth Heat energy Thermal enegy Heat (thermodynamics) Heat change
heat change sources of heat heat as energy heat thermodynamics thermal enegy heat heat as transfer of energy heat energy warmth
heat
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Heat