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Промени

== Външни препратки ==
 
*{{en икона}} [http://www.bigs.de/en/shop/htm/roentgen01.html Design of an x-ray tube (Animation)]
*[http://deutsche.nature.com/physics/7.pdf On a New Kind of Rays (PDF-Version of translated article that appeared in ''Nature'' in 1896)]
*{{en икона}} [http://members.chello.nl/~h.dijkstra19/page5.html The Cathode Ray Tube site]
*[http://www.bigs.de/en/shop/htm/roentgen01.html Design of an x-ray tube (Animation)]
*{{en икона}} [http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html X-rays на сайта Hyperphysics на Университета в Джорджия]
*[http://members.chello.nl/~h.dijkstra19/page5.html The Cathode Ray Tube site]
 
[[Категория:Електромагнитно излъчване]]