== Deletion of Crackle_(physics) == 

 I believe that you should reconsider the deletion of Crackle_(physics). I summed up my reasons on the talk page. 
 The only source is a webpage that admits that the terms in this article were made up on usenet. A common usage in mathematical or physics journals or a widely excepted text using these terms would proof their validity. I have not found any such usage nor have I ever heard the terms used in any physics or mathematics class through my graduate work or any presentations.