Martha Kearney takes to the skies with Ordnance Survey

Ordnance Survey show Martha Kearney the latest mapping technology for WATO50

10 July 2015

8 minutes

This clip is from

World at One—09/07/2015

Paul Johnson: "Poorer households have lost quite significantly"
Duration: 04:25

Evan and Sarah: Is the US being ripped off?
Duration: 10:36
National Tutoring Programme: 'Could do better'?
Duration: 05:55
'The Christmas Pine' by Julia Donaldson
Duration: 01:29
Trump’s relationship with Science
Duration: 14:18