Izinga lokushisa lingelinye lamanani angokomzimba abaluleke kakhulu ekuphileni kwethu kwansuku zonke nakusayensi. Kusisiza ukuba silinganise amakhaza nokushisa, siqonde isimo sezulu futhi senze izinqubo ezahlukene zezimboni nezaselabhorethri. Nokho, izinga lokushisa alikalwa ngendlela efanayo yonke indawo emhlabeni.
Izikali zeCelsius ne-Fahrenheit Zimbili ezisetshenziswa kakhulu emhlabeni wonke, nakuba i-Kelvin iphinde isetshenziswe kweminye imikhakha yesayensi. Okulandelayo, sizohlola lezi zilinganiso, umehluko wazo, umlando wazo, nokuthi amanani angaguqulwa kanjani asuke kwesinye aye kwesinye.
Umlando kanye nemvelaphi yezikali zokushisa
Izikali zeCelsius ne-Fahrenheit zavela ngezikhathi ezihlukene emlandweni. Isikali sikaFahrenheit Yasungulwa ngo-1724 yisazi sefiziksi saseJalimane uDaniel Gabriel Fahrenheit. Wayisungula ngokusekelwe kumaphuzu amathathu okubhekisela kuwo: izinga lokushisa elibandayo lengxube yamanzi nosawoti (0°F), izinga lokushisa elivamile lomzimba womuntu (cishe libe ngu-96°F, nakuba kamuva lashintshwa laba ngu-98.6°F) kanye nezinga lokushisa eliqandayo lamanzi ahlanzekile (32°F).
Ngakolunye uhlangothi, isikali seCelsius Yasungulwa ngo-1742 yisazi sezinkanyezi saseSweden u-Anders Celsius. Lokhu kusekelwe endaweni yokubanda kwamanzi ku-0°C nendawo yawo yokubilisa ibe ngu-100°C, ngaphansi kwezimo zengcindezi evamile. Ukuze uthole ukwaziswa okwengeziwe mayelana ezahlukene amayunithi okushisa, hlola umhlahlandlela wethu.
Umehluko omkhulu phakathi kweCelsius neFahrenheit
Umehluko omkhulu phakathi kwezikali zombili yizo inkomba kanye nobukhulu boshintsho phakathi kwamadigri. Esikalini sikaCelsius sinebanga lama-degree angu-100 phakathi kwamaphoyinti amanzi aqandayo nabilayo (0°C – 100°C), kuyilapho ku-Fahrenheit lesi sikhawu esifanayo singama-degree angu-180 (32°F – 212°F).
- Iziqu zikaFahrenheit zincane kunedigri Celsius, okusho ukuthi ukuhluka okufanayo kwezinga lokushisa kuvezwa ngezinombolo eziningi esikalini sikaFahrenheit.
- I-Fahrenheit isetshenziswa ngokuyinhloko e-US. nakwamanye amazwe aseCaribbean, kuyilapho iCelsius ijwayelekile emhlabeni wonke.
- Zombili izikali zingaguqulelwa komunye nomunye sisebenzisa amafomula anembayo esizowachaza kamuva.
Ungayiguqula kanjani iCelsius uye kuFahrenheit futhi ngokuphambene nalokho
Ifomula yokuguqula i-Celsius iye ku-Fahrenheit
Ukuguqula izinga lokushisa ngamadigri Celsius libe nguFahrenheit, sisebenzisa ifomula elandelayo:
°F = (°C × 9/5) + 32
Isibonelo, ukuguqula u-25°C ube nguFahrenheit:
(25 × 9/5) + 32 = 45 + 32 = 77°F
I-Fahrenheit kuya kuCelsius Conversion Formula
Uma sifuna ukwenza ukuguqulwa okuphambene, ifomula esiyisebenzisayo ithi:
°C = (°F – 32) × 5/9
Isibonelo: Guqula i-68°F ibe yiCelsius:
(68 – 32) × 5/9 = 36 × 5/9 = 20°C
I-Kelvin scale: Izinga lokushisa eliphelele
Kuzicelo zesayensi nezobunjiniyela, okuvame ukusetshenziswa kakhulu Isikali sika-Kelvin (K). Ngokungafani nesikalo sikaCelsius nesikaFahrenheit, iKelvin ayisebenzisi idigri (°) ekubhaleni kwayo.
I-Absolute zero, okuyizinga lokushisa eliphansi kakhulu lapho konke ukunyakaza kwamangqamuzana kunqamuka khona, itholakala 0 K (-273.15°C). Futhi, uma ufuna ukujula ku- uhlobo lokushisa, lapha unolwazi olwengeziwe.
Ukuguqulwa phakathi kukaKelvin nezinye izikali
- Kusukela ku-Celsius kuya ku-Kelvin: K = °C + 273.15
- Kusukela ku-Kelvin kuya ku-Celsius: °C = K – 273.15
- Kusuka kuFahrenheit kuya kuKelvin: K = (°F – 32) × 5/9 + 273.15
- Kusuka ku-Kelvin kuya ku-Fahrenheit: °F = (K – 273.15) × 9/5 + 32
Ukusetshenziswa okungokoqobo kwesikali ngasinye ezindaweni ezahlukene
I-Meteorology kanye nesimo sezulu
Ezibikezelweni zesimo sezulu, i isikali esisetshenziswa siyahlukahluka ngokwesifunda. Emazweni amaningi, kubikwa ku AmaCelsius degrees, kuyilapho e-US igama lisetshenziswa Fahrenheit. Ukuze uqonde ukuthi ungayichaza kanjani kahle idatha yesimo sezulu, ungathintana nathi Umhlahlandlela ophelele wezibikezelo ezinwetshiwe.
Sebenzisa ekhishini
Amaresiphi angacacisa amazinga okushisa esikalini esisodwa noma esinye. Ohhavini e-US basethelwe ku-Fahrenheit, kuyilapho eYurophu naseLatin America basebenzisa i-Celsius. Ukwazi ukuthi zombili izikali zisebenza kanjani kubalulekile ukuze uphumelele ekhishini.
Isayensi Nobuchwepheshe
Ucwaningo lwesayensi luvame ukusebenzisa i Kelvin, njengoba kuyisilinganiso esiphelele ngokusekelwe ku-zero ophelele. Lesi sikali sibaluleke kakhulu ezifundweni ezidinga ukunemba ngokwedlulele, njengasendabeni ye I-thermometer ye-Mercury. Ukuze ufunde kabanzi mayelana nobudlelwano phakathi kokushisa nezinga lokushisa, vakashela ku- ubudlelwano phakathi kokushisa nezinga lokushisa.
