To make their deadline, the Roebling crew designed a "split tram," a second spinning wheel which met the first wheel in the middle of the bridge. This development sped progress. Eventually ...

Michael McIntyre thought of the unique idea of BBC's The Wheel while having a bath - but his plan was much harder to put into practice than he thought.

Inside that second wheel is a free-spinning handle that you can grip onto ... Instead, it’s about making the car easier to control with one hand, in a move that would give driving instructors ...