Stunt experts who have worked on James Bond films test out a suction-based climbing gadget that can attach itself to porous materials and requires no ropes. Plus a treatment for heart disease developed by a Japanese doctor that uses biodegradable plastic inserts instead of permanent metal ones. With Philippa Forrester and Peter Snow. Producer David Stevenson ; Editor Saul Nasse
Repeated next Wednesday with sign language (S) (W) FURTHER INFORMATION: Ceefax page 623: www.bbc.co.uk/tw