Massachusetts Institute of Technology
Mit: Invention of the Week: William D. Coolidge: The X Ray Tube
Read about William D. Coolidge, his education, work, and his invention--the X-Ray Tube--as well as other medical innovations he is credited with. Learn how x-rays work and how they have contributed to the medical world.
National Inventors Hall of Fame
National Inventors Hall of Fame: William D. Coolidge: Vacuum Tube (X Ray)
This site provides a brief biography on William D. Coolidge, inventor of the X-ray tube, also known as the "Coolidge tube."