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What was Werner Heisenberg’s proposed unified field theory called in newspaper reports?

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Werner Karl Heisenberg sits at a desk in a suit with his hands folded, bookshelves in the background. — Werner Heisenberg Werner Heisenberg.

In 1958, when Werner Heisenberg proposed a unified field theory as a symmetry-based approach to understanding the proliferation of subatomic particles, newspaper reports referred to his work as a "world formula."1