Rattleback Kumusoro, Dombo reCelt

Kukura 9.6x2x1cm, kurongedza 16.5x9x1cm, PVCA rattleback, inozivikanwawo se

Kumusoro kwekutenderera, kunozivikanwawo sedombo reCeltic, iri yepamusoro-elliptical yepamusoro. Ichatenderera mune yakatarisana nzira; zvisinei, kana ichinge yashandurwa yakanangana nedivi, inozoita isina kugadzikana, kuzunza, kumira, uyezve shanduka kutenderera munzira yekutanga chaiko.
Uku kutenderera-kupokana-kutenderera chiitiko kunoratidzika kunge kuri kutyora mutemo wekuchengetedza kweakakwirisa simba mufizikiki. Chinotonyanya kushamisa ndechekuti kana tikashandura gyroscope kuenda kudivi rayo chairo, magyroscopes mazhinji haazove neichi chiitiko chakakosha; zvichaitika kune yakatarisana nedivi. Aya maviri maitiro anoita kuti kutenderera kumusoro kuve chinhu chisingawanzoitika, izvo zvakamutsa fungidziro yevanhu vasingaverengeki kubvira prehistoric times.