Mu ntangiriro z'ikinyejana cya 11 nyuma ya Yesu, ikoranabuhanga rya kashe ryatangiriye mu Bushinwa bwa mbere;Urwego rumwe rwa tekinoroji yo gufunga bwa mbere rwagaragaye mu bihugu by’amahanga mu kinyejana cya 15, kandi rwakoreshejwe mu gihe cya Archimedes ahagana mu 1700;Birakwiye ko tumenya ko ubu buryo bwa kashe (gupakira kashe) buracyakoreshwa mubihe bidasanzwe muri iki gihe.
Igihe cyo kohereza: Ugushyingo-01-2022
