At Copenhagen the Danes can now listen with pleasure to music played in Berlin. Each note is clear, distinct, and easy to recognize The distance of 290 miles between Copenhagen and Berlin is bridged without anything more solid than the mysterious universal fluid known as ether. How this marvel is accomplished was in part explained to a London audience by Mr. Poulxen, the inventor and part discoverer of the most perfect form of wireless telegraphy and telephony yet known, His apparatus was shown at work in the lecture room of the Royal Institution Albemarle Street. In the place of spark telegraphy, in which every wave of vibration sent forth grows less powerful as it travels through space, he has made an apparatus which pro duces continuous electrical oscillations" which keep their force constant, like a stream of water, each driven on by the power behind it, This force he can turn to any account. It will write ordinary code signal much more distinctly than the cable. Its messages can be photographed, or it can work telephone of the ordinary sort over an unknown distance, The organ of these irresistible vibrations looks like a glass cylinder wrapped with copper wire. To show its force a needle was fixed on the top of the cylinder wrapped with the cylinder, and from this when the dynamo was worked " curved and feathery mauve flame screamed and crackled. Its' vibrations were such that the vacuum tube across the room representing for the moment the receiver, glowed bright or dim as the flame rose or sank. circle of copper wire when held by Mr. Poulsenattheproper angle, first smoked, then glowed, then collapsed with flare, though it was thing or any visible energy. This was the culminating illustration of the colossal power generated by this new insstrument which can be used for wireless
Text read from the printed page and cleaned; old type leaves the occasional error.
