Science: Stepped-Up

One of the prizes that has dangled just out of reach of the scientists is a method of amplifying light: i.e., increasing the brilliance of a dim "picture." It can be done in the innards of electron tubes, but only in ways that are unsatisfactory. The ideal is a system that will brighten an optical image—with all its lights and shadows—just as sound is strengthened by a public-address apparatus.

This week Dr. F. E. Williams and D. A. Cusano of General Electric's Research Laboratory demonstrated the first major step toward licking the problem. On a round screen four inches in diameter they...

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