Man's physical universe

xanabras

ENERGY MANIFESTS ITSELF IN MANY FORMS 291

When a certain amount of chemical energy is Uberated by the

oxidation of the gasoline in an automobile, the amount of useful work

accomplished is quite small. Some automobiles are more efficient than

others, but all automobile engines are quite inefficient. That does

not mean that any energy is lost but that a large portion of it is

wasted.

Nearly every energy transformation is accompanied by the waste of

energy in undesired forms. Thus about 25 per cent of the available

WHERE ^^

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