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MARCONI'S OWN EXPLANATION

This is what a wireless message would look like if you could see it. It is a remarkable photograph and shows the electric waves passing along a wire at a station. They are invisible to the naked eye.

ON the right of the photograph of the wireless message is a picture of Marconi, the inventor of the wireless telegraph. He says that the electric waves which carry wireless messages are like the ripples which go out in all directions when you drop a pebble into the water. Sound is also made by waves—different sounds by waves of different lengths. The waves sent out by a wireless instrument can be received only by an instrument tuned to waves of the same length. Heat, light and electricity are all forms of wave motion, and Marconi says that it will be only a step further when we shall have wireless light, heat and electric power.

On the right is shown one of the earlier "wireless" stations. The vibrations of the waves from the sending instrument are carried up into the air on these wires and go out from them in all directions. Incoming waves are caught by the wires and carried down to the receiving instrument.

This is the inside of a Marconi station. The wires shown m the picture of the station above carry the messages down, where they are received by these instruments.