Science: British Smyth Report

British scientists played a large part in U.S. atomic development during World War II, and knew the theory of it well. What they did not know, and what the U.S. would not tell them, was the practical engineering technique of making fissionable material out of uranium ore. The Ministry of Supply has now published a slim, illustrated booklet, Britain's Atomic Factories, which tells what the British, starting almost from scratch at near wartime pressure, have accomplished.

First essential was pure uranium, so the central planning group concentrated on a uranium refinery. Built quickly at Salwick in Lancashire, it did not use the...

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