Tesla's Light

Nikola Tesla claims to have perfected his electric light on which he has been experimenting for a long time. The illumination is secured by means of a needle which vibrates with very great rapidity in a vacuum tube, or bulb. There are no films used, or any of the attachments necessary in existing lights. The bulb is simply attached to a wire connected with a street current. When the latter is turned on, the bulb becomes a ball of light, one three inches long giving out an illumination equal to 250 candle power. The present incandescent light gives only 3 per cent of illuminating power, the other 97 per cent being wasted in heat. Tesla's light gives 10 per cent of illuminating power, and he believes he can increase this to 40 per cent, so that the waste of energy will be only 60 per cent. Another economy of the new light is that it does not have to be renewed, the same bulb serving for a long time. Photographs can be taken by it as easily as in sun light.