Tesla's Message to Mars

Tesla gives a brief idea of his scheme to send messages to other planets.

"With a billion horsepower drawn from Niagara I am going to signal Mars, and my message will reach not only that ruddy planet but one hundred times further, even to Neptune, which is so distant that our sun looks a little bigger than a star... "Whether we can get an answer or not depends on who is there. More than likely the first answer for my neighbor will be: "Well-well-at last. We have been calling you the last ten thousand years."