[sherr]

The Rhodes book is great on this. Fermi was such a good physicist and a great hands-on engineer. Before electronic calculators or computers: a slide-rule, graphing paper and a notebook. A lot of danger getting the maths wrong! Luckily, Fermi was very good at maths.

[ggm]

The article quotes extensively from Rhodes, and Groves.

[jgalt212]

Groves was an administrative genius, probably second only to Eisenhower.