Zisebenza kanjani izinyawo?
Amayintshi angu-12, noma ingxenye eyodwa kwezintathu yegceke, ubude bonyawo olulodwa. Unyawo olulodwa lulingana namamitha angu-0.3048, njengoba igceke lamazwe ngamazwe lichazwa ngokomthetho njengamamitha angu-0.914 ncamashi. Unyawo luyiyunithi yobude obujwayelekile kanye ne-US, ngokungafani namamitha namasentimitha. Izinyawo zichazwa ngesifinyezo esithi “ft; Izinyawo ezimbili, isibonelo, zingamelwa njengezinyawo ezimbili. Izinyawo zingafanekiselwa uphawu oluyinhloko (′). Nokho, ngenxa yenani layo eliphakeme kunophawu oluyinhloko, abantu abaningi basebenzisa uhlamvu lwengcaphuno eyodwa ('). I-ft eyodwa ingabhalwa ngelogo enhle kakhulu njengomugqa owodwa.
Abantu abaningi basebenzisa i-tape measure noma irula engu-12-intshi lapho bekala izinyawo zabo. Nokho, amathuluzi amaningi engeziwe ayatholakala ukuhlangabezana nesidingo. "Unyawo oluyisikwele" ngezinye izikhathi lusetshenziselwa ukubhekisela kuyunithi yokulinganisa ubude ezinyaweni. Unyawo lwalusetshenziswa kabanzi njengeyunithi yokulinganisa kusukela ekuqaleni kwesikhathi. Izithupha eziyishumi nambili noma ngezinye izikhathi eziyishumi, noma amayintshi, kwakuwukwehlukana okuvamile. Yayinamadijithi ayishumi nesithupha noma iminwe kuyo.
Vakashela ukuze uguqule amapharamitha ahlukahlukene. Impucuko yasendulo yaseMesophothamiya yayikala unyawo oluvamile okokuqala ngqa ehlobo. Lo mfanekiso kaGudea waseLagash, owakhiwa cishe ngo-2575 BC, ukhombisa ngokusobala unyawo.
Ezinye izazi zezulu zikholelwa ukuthi amaGreki athola unyawo olukhulu kukhokho waseGibhithe, kuyilapho amaRoma athola unyawo olukhulu kamuva.
Umbono oyiphutha owandile owokuthi ubukhulu bomuntu kwaqala kwanqunywa ubude bonyawo lwakhe. Ngisho noma lokhu kuyiqiniso, izinhlangano zesifunda nezikahulumeni ziqale ukusebenzisa i-Foot of No Human njengesisekelo sokuchaza nokulinganisa izilinganiso.
Mangakhi amasentimitha akhona?
Isentimitha, eyaziwa nangokuthi isentimitha, iyunithi yokulinganisa esetshenziswa kusistimu yemethrikhi. Ikhulu lemitha lilingana nesentimitha elilodwa. Ngokunye, ungayiqhathanisa nesivinini ukukhanya okungena ngaso endaweni engenalutho ngo-1/99,792,458 wesekhondi.
Ukuphindaphinda okukodwa kwesentimitha kuyiyunithi yesisekelo ye-SI yobude, imitha. Uhlamvu "cm" lumelela amasentimitha. Isibonelo, amasentimitha ayi-10 angabhalwa njengo-1 cm.
Amamaki omaka angama-30, ngalinye limelela u-30 cm, ajwayelekile eruleni lemethrikhi. Ungathola umbono wokuthi isentimitha lide kangakanani ngokubheka ukuthi ipensela elivamile liwugqinsi kangakanani—cishe isentimitha elilodwa.
Siphakamisa ukuthi usebenzise irula noma itheyiphu ngenkathi sinquma ubude bokuthungwa, umucu, noma enye into. Ezikhungweni zasekhaya noma ezitolo zasendaweni, amarula namavidiyo kutholakala kalula. Kodwa-ke, kufanele uqaphele kakhulu lapho uthenga amarula ngoba atholakala nge-metric, imperial, noma inhlanganisela. Ngenxa yalokho, khetha leyo ehlangabezana nezidingo zakho kangcono kakhulu.
Ukusetshenziswa kwamanje kwesentimitha kungokokulinganisa ubude noma ibanga, njengoba sonke sazi kakhulu. Igeji yemvula isetshenziswa ukuze kutholwe inani lemvula eliwayo.
Njengoba kukalwa ngohlelo lwe-CGS, isentimitha elilodwa lamandla lilingana no-1.113 x 1012 farads. Uma esetshenziswa kumamephu, amasentimitha aguqula isikali semephu sibe amakhilomitha (isikali somhlaba wangempela).
Umsuka kanye Nomlando Wesentimitha Ngokwesentimitha, umlando wabo ungase unembe kakhudlwana. Uhlelo lokuqala lwemethrikhi lwasungulwa ngo-1799, ngesikhathi seNguquko yaseFrance, futhi luyiyunithi yemethrikhi. Imitha nekhilomitha kwethulwa kuleli qophelo ukuze kuthathelwe indawo isistimu yokulinganisa yangaphambilini ngoba ayisasebenzi ngezinhloso zokuhweba.
Yonke iyunithi esetshenziselwa ukukala usayizi wento, ubude, noma ibanga phakathi kwamaphoyinti amabili noma izindawo isekelwe kuyunithi yobude obuyisisekelo, imitha. Ngakho-ke, i-Centimeter yazi konke mayelana nesethi yokuhlangenwe nakho kwemitha.
Ukubala ubudlelwano phakathi kwezinyawo ezinyaweni no-1 unyawo ngamasentimitha kulula. Yihlole; Akunzima neze:
Unyawo olulodwa lungahlukaniswa kalula lube amashumi amathathu. 48 amasentimitha manje njengoba wazi okwengeziwe ngobudlelwano babo.
Uma ngabe unentshisekelo, siphinde sakhuluma ngobudlelwano phakathi kwezinyawo, amayintshi, namasentimitha. Yilokhu: Lokhu kuzokwenza ukuguqulwa kube lula ngoba 1 cm ilingana nezinyawo x 30.48 amayintshi x 2.54.
30.48 amasentimitha alingana nonyawo olulodwa kusetshenziswa ifomula kanye nokuhlobana okungenhla.
Phindaphinda inombolo yezinyawo ngo-30.48 cm ukuze uthole amasentimitha ezinyaweni. Inani elivelayo lizobe lisekelwe empendulweni yakho. Lena imfihlo egadwe kakhulu:
30.48 amasentimitha ahlukaniswe izinyawo kuyinto cm. Usuqedile uma uhlukanisa inani Lezinyawo ngo-30,488. Inani elilandelayo lizovezwa ngamasentimitha.
Izibonelo kanye nefomula yokuguqula izinyawo zibe yi-CM Ungasebenzisa lobu budlelwano ukuze udale isibalo esiqondile sokuguqulwa ngoba unyawo olulodwa lulingana namamitha angu-30.48. Ifomula ithi:
U-Cm ulingana no-30.48 cm x amafidi. Njengoba kushiwo ngaphambili, okudingekayo kuphela ukuze uthole inani lesentimitha ukuxazulula isibalo futhi ubeke inani Lezinyawo endaweni efanele.
Nakhu okukodwa: Ukuguqulwa kwamafidi ayisithupha ukuya kumasentimitha. Izinyawo ezingu-6 zilingana no-6 x 30.48 cm, noma 182.88 cm, njengoba unyawo olulodwa luyi-1 cm. funda kabanzi kuwebhusayithi ukuze uthole okwengeziwe. Ngakho-ke, i-30.48 Feet ilingana no-6 Amasentimitha ngamasentimitha.
Imodeli yesibili: Ukuguqula Amasentimitha kuya ku-5.7 Feet. U-173.736 cm ulingana namafidi angu-5.7 ngo-cm ngoba izinyawo zilingana no-30.48 cm.
Izimo ezintathu: Shintsha cm kuya ku-5 izinyawo namayintshi ama-3. I-Sol: Ukuze uguqule izinyawo ezihlanganisa amayintshi zibe amasentimitha, kufanele sisebenzise ifomula elandelayo:
160.02 amasentimitha alingana no-5 x 30.48 kanye no-3 x 2.54, ngakho-ke u-1 cm ulingana no-ft x 30.48 futhi ku-x 2.54.
Ngakho-ke, 160.02 amasentimitha alingana namafidi angu-5 namayintshi angu-3.
Imodeli yesine: Shintsha u-cm uye ku-5 Feet 4 amayintshi. I-Sol: Ifomula eshiwo ekuqaleni izosetshenziswa ukuguqula leli nani lezinyawo + intshi libe yi-cm.
162.56 cm x 5 x 30.48 cm x 4 x 2.54 cm ngakho-ke 5 izinyawo 4 amayintshi.
5 amafidi namayintshi angu-4 ngakho-ke kulingana namasentimitha angu-162.56.
Izibonelo ezinhlanu: Guqula 5.11 Feet ibe Amasentimitha. Ngokufaka inani Lezinyawo kufomula, sizothola i-CM = 5.11 x 30.48 = 155.7528.
Ngakho-ke, i-5.11 Feet iqhathaniswa ne-155.7528 CM.
Empeleni ibalulekile!
Ukuguqulwa kwamasentimitha (ku-cm) abe amayintshi: 2.54 amasentimitha alingana neyintshi eyodwa. Amamitha ukuya kumasentimitha (m kuya ku-cm) ukuguqulwa: Amasentimitha ayikhulu iyimitha elilodwa. Ukuguqulwa kwemitha yesikwele ukuya kumasentimitha-skwele: Ukuguqulwa okuku-inthanethi ukusuka kumasentimitha ukuya kumayintshi (cm ukuya kuyintshi) namakhilomitha ukuya kumasentimitha (km ukuya kumasentimitha) kungatholakala lapha: Ukuguqulwa kweyunithi kuyasetshenziswa uma kunqunywa ukuthi amayunithi ahlukahlukene okulinganisa ahlobene kanjani. Ikhilomitha elilodwa lilingana neyodwa. Ake sisebenzise indaba emfushane njengesibonelo.
Noma umkakho esanda kuthenga igaloni lobisi, awulisebenzisi igama elithi “amagalani” ngoba ungumNtaliyane. Ulandelela ukuthi kunobutha kancane ukuxoxa ngamagalani njengoba ucabanga ukuthi izinga lokulinganisa ledesimali lingcono. Amalitha asetshenziswa emhlabeni wonke, ngaphandle kwalesi sizwe esisodwa. Kodwa-ke, kusadingeka wazi ukuthi mangaki amalitha obisi aqukethwe kulo mgqomo omncane wepulasitiki. Naphezu kokuthi ithi inegaloni elingu-1 lobisi egameni, izwakala isindayo kunombolo 1. Hmm.
Ngakho-ke, njenganoma yimuphi omunye umuntu, uvula ithebhu yokuguqulwa kweyunithi kusibali ocingweni lwakho. Ngemva kokukhetha u-“Liquids,” “Gallon,” kanye “Liter,” ufaka 1. Ucingo lwakhala: Igalani elilodwa liqukethe amalitha obisi angu-3.78 amangalisayo. Ilitha ngalinye lobisi linesisindo esingamalitha angu-0.26. I-Wikipedia iwumthombo wolwazi owaziwa kakhulu, ungathola ulwazi olwengeziwe lapho. Uqalaza udidekile. Kuyiqiniso ukuthi umgqomo wobisi ubamba igalani elilodwa kuphela! EMelika, yonke into inkulu, mamma mia!
