tom swift among the diamond makers

 For science today i am going to talk about different ways of related or something like that I kind of don't know how to talk bout it but more or less their where about 2 ways to figure things out its on pathology like the layers the time one of the ways was carbon fiber I dotn know much about it but you can tell how old things are because its takes about 40000 years for it to be halfed the carbon fourteen does so you can figure out how old it is than you can do all the rest by the way carbon is in everybody and everything.