In B&Q they cost 20p. So why does the NHS spend £99 for a screw to put in your hip? The ones at B&Q are steel, have wide tolerances and are not sterile. The NHS buys screws that are titanium, with narrow tolerances and sterile. As the article itself says: We sell screws that are barely any different from

We are, in theory at least (playing with spreadsheets, that sort of thing), working on a process to make iron from a particular ore. The ore has a very high (15% or so) alumina content as well as a very high titanium content. No, we do not want to simply switch to another ore which would be