How do black boxes work?

Published: May 10, 2015, 11 p.m.

How do black boxes work? When a plane crashes, there's always a huge search for the elusive 'black box' to solve the mystery. But what is this, and how does it work? Heather Douglas put this to David Barry, senior lecturer in aviation safety, from Cranfield University Like this podcast? Please help us by supporting the Naked Scientists