Revision as of 20:17, 28 April 2021 edit Graham (talk \| contribs) Extended confirmed users 1,618 edits →Other names: Removed dupe. All caps does not constitute a new name. Tags: Mobile edit Mobile web edit Advanced mobile edit ← Previous edit		Revision as of 16:24, 30 May 2021 edit undo Srleffler (talk \| contribs) Extended confirmed users, Pending changes reviewers, Rollbackers 45,953 edits →History: The link is in the wrong place. Next edit →
Line 11: ==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 ~~(tool)\|celt]]"~~'' (the "c" is pronounced as "s") describes [[adze]]-, [[axe]]-, [[chisel]]- and [[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