How did Thomson use the cathode ray tube?

J.J. Thomson used results from cathode ray tube (commonly abbreviated CRT) experiments to discover the electron. The image below is of J.J. Thomson and a cathode ray tube from around 1897, the year he announced the discovery of the electron. ... The image below of a CRT used by Thomson in his experiments. read more

J.J. Thomson's cathode ray experiment was a set of three experiments that assisted in discovering electrons. He did this using a cathode ray tube or CRT. It is a vacuum sealed tube with a cathode and anode on one side. read more

Thomson’s First Cathode Ray Experiment. Thomson had an inkling that the ‘rays’ emitted from the electron gun were inseparable from the latent charge, and decided to try and prove this by using a magnetic field. His first experiment was to build a cathode ray tube with a metal cylinder on the end. read more

It was cathode ray tubes that allowed the English physicist J.J. Thomson to discover the existence of electrons in 1897. How Cathode Ray Tubes Work Before we see how J.J. Thomson used the cathode ray tube to discover the electron, we need to know how a cathode ray tube works. read more