International SI inkqubo - inkqubo womlinganiselo enye kwihlabathi elitsha

Kangangexesha elide kumazwe ahlukeneyo (yaye kwiingingqi ezahlukeneyo lizwe!) Ukuba inkqubo yalo yokulinganisa. Logama nje abantu abaye baphila zisekhusini enye kwenye, akukho ingxaki ethile oku. Nangona kunjalo, ngenxa jikelele kunye nophuhliso ngokwahlulwa ngamazwe yabasebenzi, ukwakhiwa kwenkqubo efanayo zemilinganiselo nemilinganiselo lokulwa.

Le nkqubo Kwathabatha ixesha elide, kwaye japan kwayo kwaba uhlobo isivumelwano phakathi kwezikolo ezinkulu zenzululwazi zehlabathi, nganye kunyanzeleka ukuba enze nenye. Ekugqibeleni, lo kumgca wokugqibela wabhengezwa ngo-1960, kwaye samkelwa njengoko ikhona namhlanje kwinkqubo SI ngamazwe.

Kukodwa ungayiqondiyo evela ibinzana French Système International noluqondakalayo nje nayiphi na ingcali yenzululwazi, kodwa ngummi eziqhelekileyo, waphumelela kwikhondo kwisikolo samabanga aphakamileyo. Xa ezingundoqo wayo, inkqubo SI yeyona ukuqokelelwa ibalulekileyo iiyunithi, kwakunye graphic abo enyama kunye. Ukuthathwa yayo akuthethi ukuba zonke States ezibhalisele le sisekelo efanelekileyo, kufuneka ukunikezela iinkqubo zabo. Noko ke, xa efika emsebenzini, kuboniswa intendelezo wamazwe ngamazwe, okanye ubuchwepheshe into ethengiswa ehlabathini lonke, kukho inkqubo SI isebenza primary Institute of nobuNzima Measures.

Ukususela ngowe-1970 wapapasha SI ncwadana odumileyo, enika inkcazelo eneenkcukacha kakhulu zonke iiyunithi ezinkulu zemilinganiselo, kwakunye iingxelo zokuqhambuka iinguqu zakutshanje. Ukuza kuthi ga ngoku, olu xwebhu iprintwe izihlandlo ezisibhozo, yaye ngowe-1985, kunye ne-French kunye uhlelo IsiNgesi wabonakala. Kuzo zonke kumazwe aphuhlileyo, le ncwadana iya kuphuma kunye ulwimi lwasekuhlaleni.

inkqubo SI iqwalasela njengoko eziphambili ezisixhenxe eziphathekayo. Le imitha Kilo amperes, Kelvin, okwesibini, kunye candela nolovane. Bakholelwa ukuba akukho nanye kwezi parameters awukho kwezinye, ngamanye nganye kwezi yunithi na icala ebizwa ngokuba yi-ezizimeleyo. Ngokusekelwe kuwo, ngokusebenzisa uphinda-phindo kunye nokwahlula zibe nezakhi iyunithi yemveliso, kwakunye consoles. Iimpawu ezi izinto evuthiswe rhoqo, kwizifundo zenzululwazi badla kakhulu ukuba kubuzwe lo imfuneko amaxabiso amatsha.

ubunzima obuthile inkqubo SI yemvelo aphantsi koxinzelelo ngenxa umahluko ekubizeni izandi kunye nomelo lomzobo neyunithi, oko ezisitheleyo, umzekelo, phakathi French kunye upelo Chinese ibinzana elithi "kilogram" umahluko omkhulu ngokwaneleyo. Kule nkalo, oko kugxininiswe ngokukodwa ngowe-1960, i-Charter ezibhekisela iiyunithi - akunamsebenzi ukunciphisa, nezinto aljibra loo nto ixhomekeka kulwimi. Kwafika ubunzima kuphela eRashiya nakwamanye amazwe ezisebenzisa ileta non-Latin kunye Cyrillic. Indlela yokuphuma kule meko yaba isisombululo kanye zoluntu lwamazwe ngamazwe malunga nokusetyenziswa yeesimboli icace data States.

Okwangoku, le nkqubo SI, kwelinye icala, ukuba ungumlinganiswa onjani na isiqinisekiso le inviolability ye iingqiqo zenzululwazi esisiseko, kwelinye icala, usoloko alungele utshintsho amatsha neziphithiphithi.