Where do our things really come from? China is the most common answer, but Thomas Thwaites decided he wanted to know more. In The Toaster Project, Thwaites asks what lies behind the smooth buttons on a mobile phone or the cushioned soles of running sneakers. What is involved in extracting and processing materials? To answer these questions, Thwaites set out to construct, from scratch, one of the most commonplace appliances in our kitchens today:...