16mm film Colour Sound 1982 17:00
Summary: Film demonstrating fibre-optic technology within telecommunications.
Title number: 6120
Description: Optical fibres signals are carried along hair-thin strands of glass at the speed of light. This technology owes much to BT research staff, some of whom are shown at work in the lab. Out in the field - no matter what the weather conditions are - BT staff c
Keywords: Fibre-optic, Telecommunication