Click to open image viewer. Replicas of Cavendish Lab. Apparatus (5, l. to r.); obj. ID no. EM.N-08013-A Thompson's cathode ray tube #2, EM.318206 Thompson's cathode ray tube #3, EM.N-08019 Rutherford ...

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 ...

Professor John Trowbridge delivered a lecture last night in the Jefferson Physical Laboratory, under the auspices of the Engineering Society, on "Cathode Rays." The large lecture room was filled to ...

Then, in 1895, the German physicist Wilhelm Röntgen was tinkering with a vacuum tube that had two electrical connections, known as cathodes, attached to it. When he ran an electric current through the ...