Category Archives: World War Two

Enigma

The Western Allies, in World War II,  ran the most successful intelligence effort in history.  They did well against the Japanese, frequently making partial decrypts of JN-25, the main fleet code, along with lots of useful traffic analysis, etc.   … Continue reading

Posted in World War Two | 60 Comments

Gauge Transformation

As a reader pointed out, you don’t need to to have a flypaper memory to be a physicist.  There you can go a long way with a few basic facts and a long chain of mathematical reasoning.  You can see … Continue reading

Posted in World War Two | 53 Comments

War in the East

The books generally say that biological warfare is ineffective, but then they would say that, wouldn’t they? There is reason to think it has worked, and it may have made a difference. Once upon a time,  it was spring 1942, … Continue reading

Posted in World War Two | 48 Comments