Structures that can spin around change more than just the view. As Chad Randl writes in "Revolving Architecture: A History of Buildings that Rotate, Swivel, and Pivot": "With ever-changing vantage ...

A revolving laboratory, perched on a roof eight storeys high, will take Singapore closer to constructing buildings that not only make as much energy as they use, but also produce more energy than they ...

IN BIOLOGY almost nothing revolves freely. An owl's head, for example, can twist so far round that it faces backward, but when the bird wants to look forward again, it must turn its head back the way ...