Kumiswa, Imfundo yesibili nezikole
Mangakhi amahora ngosuku, imizuzu namasekhondi, futhi kungani kwenzeka
Mangakhi amahora ngosuku? amahora angu-24 - It kuzwakele kubo bonke. Kodwa kungani kwenzeka? Ake sihlolisise umlando ukuvela amayunithi eyisisekelo isikhathi ukuthola ukuthi usuku, mangaki amahora ngosuku, imizuzwana namaminithi. Futhi sizobona ukuthi lezi amayunithi zibambene kuphela nemfundo yezinkanyezi.
Lapho benza usuku? Lesi sikhathi, omunye umhlaba inguquko emhlabeni axis awo. Ngisho nokwazi kancane mayelana nezinkanyezi, abantu Yaqala ukulinganisa isikhathi amabanga enjalo, kuhlanganise ekukhanyeni ngamunye nesikhathi amnyama.
Kodwa mangaki amahora ngosuku? Kungani-ke ngosuku ihlukaniswe amahora angu-24, ngoba isimo sikuvumela idesimali uhlelo, nokunye okuningi? Kungaba ngosuku, uthi, 10 amahora, njalo ngehora imizuzu 100, kwakuyokushintsha izinto kithi? Empeleni, akukho lutho kodwa izinombolo, ngakolunye uhlangothi, kuyoba lula nakakhulu ukwenza izibalo. Kodwa lesi simiso idesimali - kungesilo kuphela esasetshenziswa emhlabeni.
Ngo iBhabhiloni lasendulo esetshenziswa ohlelweni sexagesimal nokubala. Lengxenye elikhanyayo usuku kahle lahlukaniswa ngesigamu, amahora 6 ngamunye. Ubude ngosuku Kwatholakala amahora angu-24. Lena division ngempela elula wathatha abaseBhabhiloni nezinye izizwe.
Ngehora lesithupha ekuseni kusihlwa kwafika ihora nambili. Yileyo indlela amahora amaningi ngosuku olunezinombolo eRoma yasendulo. Kodwa kwaba namanje ebusuku! Okuwukuphela kwesizathu esenza amaRoma akazange azikhohlwe ngazo. Ngemva nanye nqo waqala emilindweni yasebusuku. Izikhonzi kwathathelwa indawo njalo ngemva kwamahora 3 ebusuku. Kusihlwa nobusuku lahlukaniswa laba 4 onogada. Ingxenye yokuqala unogada waqala at 6 ezimpondweni futhi yathatha ngokusebenzisa 9. yesibili, phakathi kwamabili, wawuqala amahora 9 kuya ku-12. Unogada yesithathu, kusukela 12 ekuseni kuya ku-3 ekuseni usuphothuliwe lapho amaqhude wahlabelela, abizwa kanjalo - "likhale-iqhude". Kugcine, unogada wesine wabizwa ngokuthi "ekuseni" luphele ngo-6 ekuseni. Futhi siqala lonke futhi.
Ngakho-ke, ukuze kube lula isimo yesibili hhayi akhiwa ukunyakaza kwezindikimba zasezulwini, futhi esikhathini izinqubo ngaphakathi cesium-133 atom ukuphumula. Futhi ukufanisa isimo langempela izindaba ngokujika Zomhlaba uzungeza ilanga kabili ngonyaka - ngo-December 31 futhi Juni 30 - engeza 2 eqa extra yesibili, futhi njalo eminyakeni 4 - extra ngosuku.
Ubude etholwe ngalolo suku amahora angu-24, noma imizuzu 1440, noma imizuzwana 86.400.
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