Ukuqonda Ukufiphala Kwenyanga kanye Nokufiphala Kwelanga
Ukufiphala kwelanga kungenye yezinto zemvelo ezimangalisa kakhulu, ezivame ukukhanga labo abazibonayo. Sekuyisikhathi eside ziphefumulele isiko, isayensi, kanye nezinganekwane emiphakathini eyahlukene. Kunezinhlobo ezimbili eziyinhloko zokufiphala kwelanga: inyanga kanye nelanga. Zombili zenzeka ngenxa yezindawo ezihambisanayo zeLanga, uMhlaba, kanye neNyanga. Lesi sihloko sizonikeza umbono ojulile wokufiphala kwelanga kanye nelanga, kanye nezinqubo zokwakheka kwazo, izinhlobo, ukuvama kokwenzeka, kanye nezinto ezihlobene.
Ukuqonda Ukufiphala Kwenyanga
Ukufiphala kwenyanga kwenzeka lapho uMhlaba uhamba phakathi kweLanga neNyanga, uvimba ukukhanya kwelanga ukuthi kungafiki eNyangeni. Ukufiphala kwenyanga kungenzeka kuphela ngesikhathi senyanga egcwele, njengoba lokhu kudinga ukuthi iNyanga ibe maqondana neLanga ngqo, idlule emthunzini woMhlaba. Isithunzi soMhlaba sinezingxenye ezimbili eziyinhloko: i-umbra (isithunzi sangaphakathi esimnyama) kanye ne-penumbra (isithunzi sesibili esingemnyama kakhulu).
Izinhlobo Zokufiphala Kwenyanga:
1. Ukufiphala Kwenyanga Okuphelele: Ukufiphala kwenyanga okuphelele kwenzeka lapho yonke iNyanga ingena emkhathini. Phakathi nalesi sigaba, iNyanga ingabonakala ibomvu noma i-orenji ngenxa yokushintshwa kokukhanya kwelanga ngumkhathi woMhlaba, into evame ukubizwa ngokuthi "inyanga yegazi."
2. Ukufiphala Kwenyanga Okungaphelele: Ekufiphaleni kwenyanga okungaphelele, ingxenye kuphela yobuso beNyanga ewela e-umbra yoMhlaba. Ingxenye yeNyanga engaphakathi kwe-umbra ibonakala imnyama, kuyilapho ingxenye engaphakathi kwe-penumbra ihlala ikhanya.
3. Ukufiphala Kwenyanga: Ukufiphala kwenyanga kwenzeka lapho iNyanga ingena kuphela eNyangeni. Kulokhu kufiphala, ukuncipha kokukhanya okutholwa yiNyanga kuncane kakhulu futhi kungaba nzima ukukubona ngamehlo enyama.
Inqubo Yokwakheka Kokusitheka Kwenyanga
Ukufiphala kwenyanga kuqala lapho uMhlaba, iNyanga, neLanga sekucishe kulingane. Ngenxa yokuthi ukuzungeza kweNyanga kuthambekele cishe kumadigri ama-5 ukusuka ekuzungeza koMhlaba (i-ecliptic), iNyanga ivame ukudlula ngaphezulu noma ngaphansi kwesithunzi soMhlaba. Kodwa-ke, uma iNyanga idlula ngqo emthunzini woMhlaba ngesikhathi senyanga egcwele, ukufiphala kwenyanga kwenzeka.
Ukufiphala kwenyanga kuvame ukuthatha amahora ambalwa, futhi ubude bako buxhomeke ekutheni indlela yeNyanga iphakathi kangakanani ne-umbra. Ukufiphala kwenyanga kungabonakala kunoma yikuphi eMhlabeni ngesikhathi sasebusuku, ngakho-ke kuvame ukubonwa abantu abaningi kunokufiphala kwelanga.
Ukuqonda Ukufiphala Kwelanga
Ukufiphala kwelanga kuyinto eyenzeka lapho iNyanga ihamba phakathi kweLanga noMhlaba, ivimba konke noma ingxenye yokukhanya kweLanga ukuthi kungafiki eMhlabeni. Ukufiphala kwelanga kungenzeka kuphela ngesikhathi senyanga entsha, lapho iNyanga iphakathi kweLanga noMhlaba ngqo.
Izinhlobo Zokufiphala Kwelanga:
1. Ukufiphala Kwelanga Okuphelele: Ukufiphala kwelanga okuphelele kwenzeka lapho iNyanga imboza ngokuphelele idiski yeLanga, ifaka ingxenye yobuso boMhlaba ebumnyameni obukhulu imizuzu embalwa.
2. Ukufiphala Kwelanga Okungaphelele: Ukufiphala kwelanga okungaphelele kwenzeka lapho ingxenye yeLanga kuphela imbozwe yiNyanga. Kulolu hlobo, iLanga livela njengocezu oluncane oluvela ebusweni boMhlaba.
3. Ukufiphala Kwelanga Okufushane: Ukufiphala kwelanga okufushane kwenzeka lapho iNyanga ikude kakhulu noMhlaba ekuzungeni kwayo okugobile, kangangokuthi yize iNyanga iphambi kweLanga ngqo, ubukhulu bediski yeNyanga buncane kunediski yeLanga. Ngenxa yalokho, unqenqema lweLanga lusabonakala nxazonke kweNyanga futhi lwakha indandatho yokukhanya.
Inqubo Yokwakheka Kokufiphala Kwelanga
Ukufiphala kwelanga kwenzeka ngesikhathi seNyanga entsha, lapho idiski yeNyanga idlula phakathi kwediski yeLanga nomuntu obuka eMhlabeni. Umjikelezo weNyanga ogobile wenza ukufiphala kwelanga kungavami njengokufiphala kwenyanga. Lapho iNyanga imboza iLanga, isithunzi sayo siwela eMhlabeni futhi sakhiwe izingxenye ezimbili: i-umbra (isithunzi sangaphakathi esimnyama ngokuphelele) kanye ne-penumbra (isithunzi sesibili esimnyama kancane).
Izindawo ezingaphakathi kwe-umbra zizobona ukufiphala kwelanga okuphelele, kanti izindawo ezingaphakathi kwe-penumbra zizobona ukufiphala okungaphelele. Ukufiphala kwelanga okuphelele kungabonakala kuphela endaweni elinganiselwe kakhulu eMhlabeni futhi kuhlala isikhathi esifushane, ngokuvamile imizuzu embalwa nje.
Ukuvama Kokwenzeka
Ngokwezibalo, ukufiphala kwelanga kwenzeka cishe kabili kuya kahlanu ngonyaka, kodwa akuzona zonke ezingabonakala kunoma iyiphi indawo eMhlabeni. Ukufiphala kwenyanga, ngakolunye uhlangothi, kubonakala kaningi ngoba kungabonakala noma kuphi ohlangothini lobusuku boMhlaba, futhi kwenzeka ngokwesilinganiso kabili ngonyaka.
Ukuqhathanisa Nokuphepha Kokubonwayo
Nakuba kokubili ukufiphala kwelanga kanye nokufiphala kwenyanga kuyizinto ezimangalisayo, izindlela kanye nokuphepha kokukubona kuhluka kakhulu. Ukufiphala kwelanga, ikakhulukazi okuphelele nokungaphelele, akukwazi ukubonwa ngqo ngeso lenyama, njengoba kungabangela umonakalo ohlala njalo. Ukuqaphela kumele kwenziwe kusetshenziswa izibuko ezikhethekile zokufiphala kwelanga noma ezinye izihlungi.
Ngokuphambene nalokho, ukufiphala kwenyanga kuphephile ukukubona ngamehlo enyama ngaphandle kwesidingo semishini ekhethekile. Ukusebenzisa isibonakude noma ama-binocular kuzokwenza umbono ucace kakhulu futhi ube mnandi kakhulu.
Izenzakalo Ezihlobene Nethonya Lamasiko
Emasikweni amaningi asendulo, ukufiphala kwelanga kwakuvame ukubhekwa njengokubalulekile ngokwenkolo noma ngokwemfihlakalo. Isibonelo, eminye imiphakathi yayibheka ukufiphala kwenyanga njengezibonakaliso ezimbi noma izikhathi zoshintsho olukhulu. Izinganekwane zamaViking zazichaza ukufiphala kwelanga njengomphumela wempisi enkulu ezama ukushwabadela iLanga noma iNyanga.
Ezikhathini zanamuhla, ukufiphala kwelanga sekuphenduke umthombo wocwaningo lwezemfundo nolwesayensi. Kusize kakhulu izazi zezinkanyezi ekuqondeni ukuguquguquka kwesimiso selanga, umkhathi woMhlaba, nezinye izici zendawo yonke. Isibonelo esidumile ukufiphala kwelanga okuphelele kwango-1919 okwasiza ekuqinisekiseni umbono ka-Albert Einstein wokuhlobana okujwayelekile.
I-Penutup
Ukufiphala kwenyanga kanye nokufiphala kwelanga kuyizinto ezimbili zemvelo, naphezu kokungavamile kwazo, eziye zaheha abantu abavela kuzo zonke izizinda zokuphila. Ngokuziqonda kangcono, asikwazi nje ukwazisa ubuhle bazo kodwa futhi sithola ukuqonda okujulile ngobukhulu bendawo yonke kanye nokuguquguquka kwangaphakathi kwesimiso sethu selanga. Ngaphandle kokubaluleka kwazo kwamasiko nesayensi, ukubona ukufiphala kwelanga kuyinto esabekayo nethusayo, esikhumbuza ngobukhulu bendawo yonke obungaphezu kokuqonda kwethu kwansuku zonke.
