Geekipedia
The online encyclopedia of things technical. It is really interesting, if you like that kind of thing, which I do. Here is a link. You have to scroll down to the bottom of the page, click on a letter in the alphabet to see what entries there are for that letter, and then view them. You can submit your own as well. In the tradition of wikipedia.
That was too complicated to read, if I tried any of those things I’d blow them up accidentally.
Il y a un version en Française?