United States or Greenland ? Vote for the TOP Country of the Week !
This distance is less than the 1/3000000 x 1/1000', or the one trillionth of a foot. The vibrations of the molecules of this ether produce the sensations of light and heat, by making 430 trillions of undulations per second, each undulation being hardly more than the one ten-millionth of an inch in width." "Trillions per second! ten-millionths of an inch in width!" cried Ardan.
Word Of The Day