Jairoskuop (frah Griik γῦρος gûros, ""soerkl"" ah σκοπέω skopéō, ""fi luk"") a wah spinin wiil ar dix ina we di haxis a rotieshan frii fi hasyuum heni orientieshan bai iself. Wen ia-rotiet, di orientieshan a dis axis no afek bai tiltin ar rotieshan a di mountin, askaadn tu di kansavieshan a hanggiula momentom. Bikaaz a dis, jairoskuop yuusful fi meja ar mentien orientieshan.