The Nobel Prize-winning physicist and bestselling author of The First Three Minutes describes the grand quest for a unifying theory of nature--one that can explain forces as different as the cohesion inside the atom and the gravitational tug between the sun and Earth. Wirting with dazzling elegance and clarity, he retraces the steps that have led modern scientists from relativity and quantum mechanics to the notion of super-strings and the idea that our universe may coexist with others.
But Weinberg asks as many questions as he answers, among them: Why does each explanation of the...

This volume deals with the exciting new subject of superstrings. It contains important lectures by some of the leading workers in this field and should be exceptionally useful to the physics community.