Transistor  

The transistor page does not have a Principle of Operation section, because 

a)the physicists know about it but don't want to share it
b)they just don't know how it works

I was thinking about it and came up with a fairly decent concept of how it works, I put it on WIKI, I think the guys got jealous, and here I am, discussing pretty much nothing. 

PS: and my language is pathetic, you naughty naughty boy,..I'll eat you...:)))