Stewart, Balfour, 1828-1887 · Toronto : James Campbell · leaf 102
an that smallparticles of air travel all the way from the gun toour ear. And so when we view a ray of light it doesnot mean that a small particle is shot from the brightbody into our eye. An impulse or wave in each casepasses over the medium between us and the body, andthe blow goes from particle… … Fig. 29. hold a lighted candle before a mirror, you will see theimage of the candle in the mirror, which means thatthe rays from the candle strike the mirror and are re-flected from it to your eye, just as if they came fromthe mirror itself and not from the candle. * Experiment 49.—In order to…
Physics
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