In geometry, the **Pappus chain** was created by Pappus of Alexandria in the 3rd century AD.

Read more about Pappus Chain: Construction

### Other articles related to "chain, pappus chain":

Steiner Chain - Elliptical/hyperbolic Locus of Centers

... The centers of the circles of a Steiner

... The centers of the circles of a Steiner

**chain**lie on a conic section ... tangent to the other such systems of circles appear in the**Pappus chain**, the problem of Apollonius, and the three-dimensional Soddy's hexlet ... Similarly, if some circles of the Steiner**chain**are externally tangent to both given circles, their centers must lie on a hyperbola, whereas those that are internally tangent ...**Pappus Chain**- Properties - Steiner Chain

... In these properties of having centers on an ellipse and tangencies on a circle, the

**Pappus chain**is analogous to the Steiner

**chain**, in which finitely many circles are tangent to ...

### Famous quotes containing the word chain:

“How have I been able to live so long outside Nature without identifying myself with it? Everything lives, moves, everything corresponds; the magnetic rays, emanating either from myself or from others, cross the limitless *chain* of created things unimpeded; it is a transparent network that covers the world, and its slender threads communicate themselves by degrees to the planets and stars. Captive now upon earth, I commune with the chorus of the stars who share in my joys and sorrows.”

—Gérard De Nerval (1808–1855)