Just watched a couple of old documents from 1975, the Secret War: "the battle of the beams" and "To see for a hundred miles".

Both were very interesting with people interviewed who were making the miracles back in WW2 and how they did it.

Especially I was surprised by the simplicity and possible effect of the knickebein system. If it had not been figured out how much destruction could the Luftwaffe had caused really...or could it?

Also a time-lapse film found in Peenemünde was quite startling showing a time -lapse film of a Berlin radar of a bombing raid Jan 1944. After seeing the film the voice said " You just witnessed the shooting down of 33 bombers..."
The Berlin radar was called something like "Jankschloss" (??)...

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