IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. J.J. Thomson's cathode ray tube #3, ...

When German physicist Wilhelm Röntgen discovered X-rays in the late 1800s while experimenting with cathode ray tubes, it was a breakthrough that transformed science and medicine. So much so that the ...

Dim lights in order to make the electron beam more visible. Wire up the heater and accelerator contacts (and also deflector contacts, if desired) on the tube to the power supply (or supplies). If ...

Before the advent of flat-panel displays, cathode ray tubes were the mainstream. CRTs consist of a giant vacuum tube with an electron gun inside, which projects electron beams onto a phosphor screen ...

This has been claimed to be the apparatus with which Joseph John Thomson discovered the electron in 1897. Although it was certainly one of his instruments, he used a series of cathode-ray tubes in ...