The last of three programmes looking at what happened to inventions featured in 34 years of Tomorrow's World.

This week an interview with inventor James Dyson, who spent many years developing the cyclonic vacuum cleaner-the machine that made him a millionaire.
Plus how Chris Channon, who has cerebral palsy, became a journalist thanks to a new keyboard, and a food that didn't catch on - edible earthworms.
In Raymond's Newsreel, Raymond Baxter recalls the events of 1975, including windsurfing and the rise of Margaret Thatcher.
Presented by Philippa Forrester and Michael Todd.
(Subtitled)
BBC Tomorrow's World Magazine: from newsagents.