In this episode Matt Crawford speaks with Jamie Holmes about his book 12 Seconds of Silence. This is the unbelievable story about the invention of the proximity fuse, what is the fuse and what does it do? In the early days of WWII it took 20,000 shells to shoot down 1 Axis aircraft, this could not stand. The creation of the fuse and the amazing people involved is the story that Holmes recounts in this fantastic and utterly engrossing read. Another example of history at its best!