The set's most striking image is a bird's-eye view of a Hockney-esque swimming pool, an illusion created by suspending swimsuited dancers from harnesses behind a shimmering blue curtain.

See how the dean begins to break; / Poor gentleman he droops apace.

… as it approached Platform 9 at Moorgate, the train, which ought to have been going at 15 miles an hour, was travelling at 35 m.p.h., and apparently accelerating. It smashed into the head wall of the 60-foot dead-end tunnel because, as we have seen, the Metropolitan's plans to extend the line south had come to nothing.

A very important feature is that steel containing hardening carbon, i.e., steel above the temperature of decalescence, is non-magnetic.