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Stories by Daniel Z. Freedman

The Hidden Dimensions of Spacetime

Spacetime, usually thought of as four-dimensional, may have as many as seven extra dimensions. Eleven-dimensional structures now under study might give a unified account of the four basic forces of nature...

March 1, 1985 — Daniel Z. Freedman and Peter van Nieuwenhuizen
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Scientific American Health & Medicine

Scientific American Health & Medicine