Flatland: A Romance of Many Dimensions

Are these higher dimensions merely mathematical tools, or do they actually exist all around us, just outside our reach? In her recent book, Warped Passages, physicist Lisa Randall explains why a growing number of her colleagues are coming to believe that this may indeed be the case.7

The combination of a basic, easily understandable grid system, together with purposely irregular streets dropped in where the grid is too large for good city functioning, could be, I think, a distinctive and most