What those moving parts are, how they interact, is what determines the output of the machine. This is obvious with what we normally think of as machines, the mechanical ones.Tim Worstall is a wholesaler of rare earth metals and one of the global experts in the metal scandium. He is also a Fellow at the Adam Smith Inst in London and an writer for a number of media outlets, including The Times (London), Telegraph, The Register and even, very occasionally indeed, for the WSJ. This account is linked with that o ...