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

The Sciences

Supergravity and the Unification of the Laws of Physics

In this new theory the gravitational force arises from a symmetry relating particles with vastly different properties. The ultimate result may be a unified theory of all the basic forces in nature...

February 1, 1978 — Daniel Z. Freedman and Peter van Nieuwenhuizen