The throwing and catching of multiple objects such that at least one is always in the air. Some aspects of juggling turn out to be quite mathematical. The best examples are the two-handed asynchronous juggling sequences known as ``Siteswaps.''

**References**

Buhler, J.; Eisenbud, D.; Graham, R.; and Wright, C. ``Juggling Drops and Descents.'' *Amer. Math. Monthly*
**101**, 507-519, 1994.

Donahue, B. ``Jugglers Now Juggle Numbers to Compute New Tricks for Ancient Art.'' *New York Times,*
pp. B5 and B10, Apr. 16, 1996.

Juggling Information Service. ``Siteswaps.'' http://www.juggling.org/help/siteswap/.

© 1996-9

1999-05-25