Fust thmk oí it! Eleven times arouud this globe of ours" in the space of 60 seconds! Can you imagine anything that moves with such remarkable speed? Sound travels only 12 1-2 miles per minute, and a rifle ball (if its speed werenot diminished by resistance)16 1-2 miles. Light passes through a distance equal to 7 1-2 revolutions of the earth in one minute, but electricity travels so astonishingly fast that it is able to complete the circuit of the earth 1 1 1-2 times la 60 secónos.