Oh, damn, it also oxidizes... and quite fast! https://www.youtube.com/watch?v=y674KwBig6Q
2015-04-05 19:16 GMT-03:00 Daniel Rocha <danieldi...@gmail.com>: > But why not a simple graphite from a pencil? The bone is a fixed > structure, it won't stress the fragile graphite. And they can used at will, > since they are extremely cheap. I am focusing here on extreme "cheapness". > > Daniel Rocha - RJ danieldi...@gmail.com
