Revision as of 16:44, 30 May 2021 edit DavidWBrooks (talk \| contribs) Administrators 41,235 edits no need for separate "names" section ← Previous edit		Revision as of 16:45, 30 May 2021 edit undo DavidWBrooks (talk \| contribs) Administrators 41,235 edits rewrite sentence for readability Next edit →
Line 10: ==History== [[File:RATTLEBACK - ANAGYRE -(GAEL 24 inches) - Emmanuel Peluchon.jpg\|thumb\|Large rattleback made from different wood densities]] Archeologists who investigated ancient [[Celt]]ic and [[Ancient Egypt\|Egyptian]] [[archaeology\|sites]] in the 19th century found [[celt (tool)\|celts]] which exhibited the spin-reversal motion. The [[antiquarian]] word ''celt'' (the "c" is soft, pronounced as "s") describes [[lithic analysis\|lithic]] tools and weapons shaped like an [[adze]]-, [[axe]]-, [[chisel]]-, ~~and~~or [[hoe (tool)\|hoe]]~~-shaped [[lithic analysis\|lithic]] tools and weapons~~. The first modern descriptions of these celts were published in the 1890s when [[Gilbert Walker]] wrote his "On a curious dynamical property of celts" for the ''Proceedings of the Cambridge Philosophical Society'' in Cambridge, England, and "On a dynamical top" for the ''Quarterly Journal of Pure and Applied Mathematics'' in Somerville, Massachusetts, US.

Rattleback: Difference between revisions