Magic Roundabout (Hemel Hempstead) viaduct. The BP building was found to be unstable due to defective reinforced concrete and the exit had to be closed. The building was demolished but the original route was not restored, although a newer side exit from the roundabout replaced the junction with Marlowes off a side road. Magic Roundabout (Hemel Hempstead) The "Magic Roundabout" in Hemel Hempstead, Hertfordshire, England, is the familiar name given to the Plough roundabout. The familiar name comes from the children's television programme, and is also used for a similar junction in Swindon and the M40 junction in Denham. The official name relates to
The Magic Roundabout the series. A kind of engineering nut with a spring attached, for using in metal channels, is often called a 'Zebedee nut' for its similarity to the character. TV production equipment manufacturer Quantel used many Magic Roundabout references in their 'Henry' system. The hard disk system was named 'Dylan' and the operating system named 'Dougal' with VT-100 queries to the OS returning the memorable phrase 'Already Dougling'. The Magic Roundabout The Magic Roundabout is an English-language children's television programme that ran from 1965 to 1977. It was based on the French stop motion animation show "Le Manège enchanté", which was