They can survive in lava for half an hour and accelerations of 3,400 Gs. Their beacons can be detected 20,000 feet beneath the waves. Most shocking of all - they aren't actually black! (They're bright orange = the least common colour in nature.)Today it's the invention of the iconic Black Box (or Flight Recorder). We'll meet David Warren, the Australian who invented them. We'll learn how they work and try to fathom the strange fascination they hold.Edited by Tom Delargy, Produced by Freddy Chick, Senior Producer is Charlotte LongDiscover the past on History Hit with ad-free original podcasts and documentaries released weekly presented by world-renowned historians like Dan Snow, Suzannah Lipscomb, Lucy Worsley, Matt Lewis, Tristan Hughes and more.Get 50% off your first 3 months with code DANSNOW. Download the app or sign up here.If you want to get in touch with the podcast, you can email us at ds.hh@historyhit.com, we'd love to hear from you!You can take part in our listener survey here. Hosted on Acast. See acast.com/privacy for more information.