Content deleted Content added
m convert special characters found by Wikipedia:Typo Team/moss (via WP:JWB) |
Removed an advertisement-like citation. Tag: references removed |
||
Line 18:
==Size and materials==
[[File:Celt with weights of gemstone turtles-01.jpg|thumb|Carved wooden rattleback]]
Rattleback [[artifact (archaeology)|artifact]]s are typically stone and come in various sizes. Modern ones sold as novelty puzzles and toys are generally made of plastic, wood, or glass, and come in sizes from a few inches up to {{convert|12|in}} long. A rattleback can also be made by bending a spoon.<ref>{{Cite web|url=http://www.exo.net/~pauld/TomTits2000/europetrip/technorama%20lecture/technoramalecture.html|title=Technoramalecture}}</ref>
Two rattleback design types exist: they have either an asymmetrical base with a skewed rolling axis, or a symmetrical base with offset weighting at the ends.
| |||