It says that if in this space any closed-curve object, such as a rubber band, can be shrunk to a point, then the space is topologically equivalent to a sphere.

FORBES: Plugging A Math Gap

The tapered blades curve off into space and disappear into the mist.

NPR: Power Structures Shape Northwest Landscape

Although it's directed by a proxy (Robert Lorenz was assistant director on "Million Dollar Baby, " "Mystic River" and "Space Cowboys" among others), "Trouble With the Curve" has all the hallmarks of an Eastwood movie in his folksiest mood.

CNN: STORY HIGHLIGHTS