“Under optimum conditions the human eye can detect a candle at a distance of fifteen miles.” — Paul W. Brand Copy Share Image
“Under optimum conditions the human eye can detect a candle at a distance of fifteen miles.” — Paul W. Brand Copy Share Image
“Our assortment of rods and cones lets us see objects at the ends of our noses and also stars light-years away.” — Paul W. Brand Copy Share Image
“The brain’s total number of connections rivals the stars and galaxies of the universe.” — Paul W. Brand Copy Share Image
