Word: lenard
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Coolidge Tube. In x-ray tubes the electrons popping from the cathode are imprisoned within the tubes. How to get them outside became a problem for scientists. Philip Lenard, Nobel prizewinner for 1905 and now professor at the University of Heidelberg, solved it by placing a thin aluminum "window," one eighth of an inch in diameter, at one end of a tube. Electrons passed through it, but feebly. He used only 30,000 volts of electricity...
...PHYSICAL COLLOQUIUM. "Lenard: on the Action of Ultra-Violet Light upon Gases." Professor Lyman. Jefferson Physical Laboratory, Room...
...PHYSICAL COLLOQUIUM. "Lenard; on the Action of Ultra-Violet Light upon Gases." Professor Lyman. Jefferson Physical Laboratory, Room...
...PHYSICAL COLLOQUIUM. "Lenard on the Conductivity Produced by Ultraviolet light." Mr. F. Palmer, Jr. "Recent Scientific Literature." Dr. Lyman. Jefferson Physical Laboratory, Room...
...PHYSICAL COLLOQUIUM. "Lenard on the Conductivity Produced by Ultraviolet light." Mr. F. Palmer, Jr. "Recent Scientific Literature." Dr. Lyman. Jefferson Physical Laboratory, Room...