CK-12 Foundation
Ck 12: Chemistry: Cathode Ray Tube
[Free Registration/Login may be required to access all resource tools.] Covers the development of the first cathode ray tube.
Other
Fusion Anomoly: William Crookes
A brief biography of Sir William Crookes, the British chemist and physicist who discovered thallium, invented the radiometer, and studied cathode rays. Includes related links.