Impeta Sarah ni impeta y'izahabu yahumetswe n'ubwoko bw'indabyo peony ndetse n'umukinnyi w'inyeshyamba wari uyisimbuye izina, Sarah Bernhard. Impeta igaragara nk'ikomeye kandi yoroshye icyarimwe, nk'uko indabyo ubwayo imeze. Isura yayo ihinduka bitewe n'aho urebera. Sarah yakozwe mu izahabu ya 585 y'umuhondo yasubiwemo (recycled) hakoreshejwe uburyo bwo gushonga inkoni z'ibinyabuzima (lost wax casting) n'uburyo bw'abanyabukorikori b'izahabu. Amashusho y'indabyo yaremwe bapfundikira ubuki (wax) bushonze hejuru y'ikoranabuhanga ry'icyuma cyunamye (iron sphere tool), hanyuma bigashongwa mu izahabu, bigasukurwa neza kandi bigahuzwa hifashishijwe umugozi w'izahabu, hakoreshejwe amasoda make gusa. Iyi mishinga ihuza ubuhanzi bw'ibirori by'ibikoresho by'imyambarire n'ubuhanzi nyabwo.

Izina ry'umushinga : Sarah, Izina ryabashushanya : Anna-Reetta Väänänen, Izina ry'abakiriya : Anna's Darling.

Soma ibiganiro biheruka n'ibiganiro kubijyanye no gushushanya, guhanga no guhanga udushya hagati yumunyamakuru wubushakashatsi hamwe nabashushanyo bazwi kwisi yose, abahanzi nabubatsi. Reba ibishushanyo mbonera bigezweho hamwe n'ibihembo byatsindiye ibihembo byabashushanyo bazwi, abahanzi, abubatsi n'abashya. Menya ubushishozi bushya kubijyanye no guhanga, guhanga udushya, ubuhanzi, igishushanyo mbonera. Wige ibijyanye nigishushanyo mbonera cyibishushanyo mbonera.