<prompt> Pfupisa nyaya yacho: International Prototype Kilogram inoratidzwa pamufananidzo yakarasikirwa ne0.0001g muzana remakore rapfuura, zvichiita kuti masayendisiti agone kuwana chiyero chakarurama zvikuru chehuremu. Chinetso icho chave chichiremera pfungwa dzesayendisiti kwamakore akawanda ndechokuti ungatsanangurazve sei uye kuti ungayera sei kirogiramu nenzira yakarurama. Pari zvino chiyero chacho chakavakirwa pachirongo chesimbi - chinofanira kurema magiramu 1 000 chaiwo - chinochengetwa chakavharwa muParis. Asi simbi yacho iri kuramba ichiderera zvishoma nezvishoma, zvichiita kuti vaongorori vokuGermany vatsvake nzira itsva yokuwana nayo chiyero chakaringana chekirogiramu. International Prototype Kilogram yakarasikirwa nema 100 micrograms 0.0001g muzana remakore rapfuura, izvo kunyange zvazvo zviri pedyo nehuremu hweguruva, zvinoreva kuti kirogiramu yepamutemo iri kuva isiri kunyatsojeka zvishoma nezvishoma. Masayendisiti epaGerman Nation Metrology Institute PTB muBraunschweig akawana nzira ine unyanzvi yokugadzira nayo chiyero chakarurama zvikuru chehuremu, icho chinobatanidza kuverenga nhamba yamaatomu anodikanwa kuita kirogiramu, panzvimbo pokuvimba nechidimbu chesimbi. Asi kuti vakunde nhangemutange yamarudzi ose yokurondedzerazve kirogiramu, vanofanira kunatsiridza mutoo wacho kupfurikidza nokugadzira bhora rakatenderera zvikurusa renyika. Horst Bettin, mutungamiri wepurojekiti yekirogiramu yePTB, akati: Chinangwa chedu ndechokuti PTB iite kuti kugadzirwa kwekirogiramu yeramangwana kusanyatsozivikanwa. Pashure pemakore okutsvakurudza, vakagadzira nzira yokuita nayo makristasi anotenderera akachena zvisingadaviriki anogadzirwa nemakomba maduku esirilicon yegasi. Kubva pane silicon yakachena zvisingadaviriki, vanokwanisa kuita kuti pave nekristaro imwe chete isina tsvina ine chimiro chomukati chakanyatsorongeka uye chisina kutsemuka. Kambani yacho yakati: Kuva kusina tsvina uye kuva nechimiro chakarongeka zvose zviri zviviri zvinhu zvinokosha kuti kuedza kwacho kubudirire. Kubva mumakristasi ari maviri akaenzana, ane muviri wakatenderera, PTB inogadzira mabhora emakristaro akakomberedza kupfuura zvimwe zvinhu zvose zviri munyika. Masayendisiti ari paGerman Nation Metrology Institute PTB muBraunschweig akawana nzira ine unyanzvi yokugadzira chiyero chakanyatsojeka zvikuru chehuremu, asi vanofanira kutanga vapedza...  <response>: International Prototype Kilogram yakabudisa 100 micrograms muzana remakore rapfuura. Chiyereso chechikirogiramu chinogadziriswa kubva pasirinda yesimbi inochengetedzwa zvikuru. Masayendisiti eGermany ari kushanda kuti maatomu mangani ari mune imwe nharaunda. Nzira yacho inofanira kuvabvumira kutsanangurazve kirogiramu zvichibva pauwandu hweatomu. 