Cathode ray
id:
cathode-ray-222-1731980
title:
Cathode ray
text:
Cathode rays or electron beams (e-beam) are streams of electrons observed in discharge tubes. If an evacuated glass tube is equipped with two electrodes and a voltage is applied, glass behind the positive electrode is observed to glow, due to electrons emitted from the cathode. They were first observed in 1859 by German physicist Julius Plücker and Johann Wilhelm Hittorf, and were named in 1876 by Eugen Goldstein Kathodenstrahlen, or cathode rays. In 1897, British physicist J. J. Thomson showed
brand slug:
wiki
category slug:
encyclopedia
description:
Beam of electrons observed in vacuum tubes
original url:
https://en.wikipedia.org/wiki/Cathode_ray
date created:
2001-10-30T10:44:00Z
date modified:
2024-09-14T00:50:04Z
main entity:
{"identifier":"Q207340","url":"https://www.wikidata.org/entity/Q207340"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/2/23/Cyclotron_motion_smaller_view.jpg","width":1383,"height":1749}
fields total:
13
integrity:
16