The Secret War

I spam this everytime WW2 engineering is mentioned and I'll do it again: this video The secret war is a documentary about exactly that (amongst other things e.g. the magnetic mine): WW2 RADAR and radio navigation, and the intellectual battle between the Brits and Germans as they tried to locate beams and steal (genuinely!) entire German ground radar stations It's very long, very detailed but well presented - in a style that assumes you aren't stupid.

Anyone who browses HN regularly will probably enjoy the book "Most Secret War" by R.V. Jones (or the accompanying TV show "The Secret War"). Jones was a physicist working for Churchill directly by the end of the war. Everyone has heard of Bletchley park and the Manhattan project, but Jones's book covers the game of genuinely deadly cat and mouse that was played throughout WW2 as each side learned and adapted to eachothers scientific intelligence. Radar, Sonar (ASDIC at the time), Magnetic mines, etc. Its easy to think of it as an intellectual game of chess but it is telling that when the Allies bombed Peenemunde (Nazi area 51) they flew straight over the laboratories to bomb the houses of the scientists. The TV adaptation is brilliant - thoughtful documentary production, not dumbed down, and most of the people were still alive when it was filmed. this video Edit: for anyone reading the book look out for mentions of any members of the Cambridge five - Jones was shunned after the war so he is perhaps overly kind to Kim Philby. The same system that allowed the KGB to run wild wouldn't recruit Jones into intelligence work for being of the wrong sort (apparently - according Peter Wright)

For more R V Jones goodness, watch "The Secret War" from 1977. The two first segments, "The Battle of the Beams" and "To See for a Hundred Miles" should be of interest, but all of it is great, really. this video Bonus: It includes interviews with Albert Speer. More info about the series: link

One thing a lot of people forget because war movies don't show them, is that by the end of the war allied and German aircraft were absolutely loaded with electronics. The story of Radar on the ground is well known, but the story of systems like link (so named apparently because it was a smell that no one had discovered before) is not so well known. Similarly a lot of these British efforts were more at risk to their own commanders that the Germans at the beginning, because the engineers were having to go through utterly ridiculous hoops to justify basic physics to their superiors. Sometimes their scientific superiors... this video is a very very good documentary about this kind of thing. Made before the scientists were dead, so lots of gossip. Randall and Boot should be known by more people, but magnetrons are not as awesome as the nuclear bomb.