Cathode ray tubes, or CRTs, are made of heavy leaded glass, which is used to block harmful X-rays produced by the tube's cathode ray guns. The leaded glass is categorized as hazardous waste in ...

The eminent Cambridge physicist J.J. Thomson solved the puzzle in 1897: The cathode-rays inside the tube were comprised of negatively charged particles 2,000 times lighter than a single hydrogen atom.

I was told that the flat-screen/plasmas are real energy hogs. What do you recommend? ... (EPA), a 28-inch conventional cathode-ray tube (CRT) set uses about 100 watts of electricity.

This article was originally published with the title “ The Cathode Ray Tube and its Applications ” in SA Supplements Vol. 84 No. 2173supp (August 1917), p. 124 doi:10.1038 ...

/ BOSTON / TUNGSTEN” and “Pat'd. Dec. 3, 1912" and “43243” inscriptions. This is a water-cooled, cold cathode x-ray tube with a heavy duty copper target. The tube could be modified to permit cooling ...

Five companies including Samsung SDI Co Ltd and Koninklijke Philips agreed to pay a total of $528 million to resolve a class action lawsuit alleging price fixing in the market for cathode ray ...