Cold Light?

In Paris, Camilla Dussard gave a demonstration of "cold light." In the presence of famed members of the Academic des Sciences, he touched the wires of his 2,000-candle-power electric lamp and was no more harmed than if he had exposed his hand to the fiery spray of a holiday "sparkler." No shock nor burn resulted.

"Only one watt in a 100-watt lamp actually illuminates," the inventor explained, "the others merely give off heat." Yet it is possible, he believes, to build a 10,000-candle-power lamp that will give off no heat at all. Such a"frozen light" could be used cheaply to project cinemas.

Two years ago, at the time when the discovery of cold light--after seven years of experiment--was discussed by the American Philosophical Society, it was pointed out that if the product could ever become marketable, it could be supplied at 10% of the cost of hot light.