Use BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.

Find out how to listen to other BBC stations

Episode details

World Service,26 Jan 2000,23 mins

Topography

The Works

Available for over a year

How to make a map of uncharted parts of the world by looking down at the planet from a space shuttle. Also, Xerox invented electronic reusable paper technology called Gyricon.

Programme Website
More episodes