Gschmeissner said: "For anyone involved in microscopy the SEM is the ultimate boy's toy. Costing between £150,000 and £500,000, there are only a handful of people around the world who have access to this for fun. To be able to use equipment like this when I am retired is a dream come true." Picture: the writing point of 'superwound' guitar string

Credit : Power And Syred/SPL/Barcroft Media