Item about a man whose hobby is making different types of miniature bicycles.
A rather useless one-man mini submarine is demonstrated in a swimming pool.
Men demonstrate a miniature car - they take it for ride around Piccadilly Circus.
Quirky inventor Alfred Tabb makes miniature bicycles that work!
Amazing miniature camera that is only three quarters of an inch in height, Wealdstone, London.
A new invention - a cross between a mobile telephone and a walkman.
Computer room typical of the 1970s - lots of large magnetic tape machines and flashing lights.
A mechanical 'computer' is seen in action as inventor Roland Emett adds the finishing touches.