The ancient Greek mathematician once used his ingenuity to help defend his home against foreign invaders. When Roman forces prepared to attack Syracuse about 214 BC, Archimedes installed mirrors on the shore and trained them on the Roman vessels. The sun's magnified rays were trained on the Roman ships and ignited them.

Scientists today believe this story was possible. It makes us think twice when Jesus calls us the light of the world. We know in a general sense what light does, but do we consider how powerful it can be?


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Illustration by J. Michael Shannon, Professor of Preaching, Cincinnati Bible College & Seminary, Cincinnati, OH.