Rattleback: Difference between revisions

Revision as of 04:10, 19 December 2006

Revision as of 00:07, 20 December 2006

Line 3:

[[Image:Celt_with_gemstone_turtles-01.jpg|thumb|200px|Carved wooden rattleback]]

A '''rattleback''', also known as a "celt," "Celtic stone," "rattlerocksrattlerock," "spin bar," "Tate's," "wobble stone" or "wobblestone," and by the product names "ARK," "Bizzaro Swirls," "RATTLEBACKS," "Space Pet" and "Space PetsToy," is a semi-ellipsoidal [[top]] which will spin on its axis in a preferred direction. But, if spun in the opposite direction, it becomes unstable, "rattles," stops and reverses its spin to the preferred direction.

:''Behold the mysterious celt,''