London Underground Manual: Designing, building and operating the world's oldest underground rail net

Despite a lack of experimental examples, Tianjian Ji considers this a useful reference book for researchers and those who fi nd the conventional viscous damping model insufficient in their practical design and analysis.

"My career has been all about good fortune" says Arup Deputy Chairman Tristram Carfrae. From early years assisting mercurial genius Peter Rice to acting as engineer for man-of-the-moment Thomas Heatherwick’s Garden Bridge in London, he has worked with the greats of engineering and architecture. Now Carfrae, the designer of the stunning Beijing Olympic Aquatic Centre, is confirmed as one too, as the 2014 recipient of the Institution's Gold Medal.

Letters this month include discussion on: teaching art to engineering students, flood prevention and engineer's status.