How do you design a roller coaster? What was it like on the North Sea oil rigs in the 1980s? What did you learn in the steel yards? Hanif Kara, recipient of this year’s Soane Medal led the engineering on the Peckham Library by Will Alsop, the Phaeno Science Centre by Zaha Hadid Architects amongst many others, Tim though is interested in where Hanif came from as much as where he got to.