Umhlaba uzungezwe isathelayithi yemvelo eyodwa eyaziwa ngokuthi yiNyanga. Indikimba yasezulwini ezungeza iplanethi ibizwa ngesathelayithi yemvelo. Nakuba amanye amaplanethi, anjengeJupiter kanye neSaturn, enamasathelayithi emvelo angaphezu kwamashumi ayisikhombisa, amanye, njengeVenus neMercury, awanawo. Phakathi kwamasathelayithi emvelo eSolar System, iNyanga ithatha indawo yesihlanu ngosayizi. Abantu abaningi bayazibuza ukuthi kungani iNyanga ingathathwa njengeplanethi.
Ukubaluleka kolwazi lweNyanga
I-Space Age yaqala ngeminyaka yawo-1950, iphawula ukuqala komzamo womuntu wokuhlola izindikimba zasezulwini ngale koMhlaba. INyanga, njengoba iseduze kakhulu neplanethi yethu, yaba umgomo oyinhloko. Kusukela lapho, kube khona ngaphezu kwekhulu lohambo lwamarobhothi kanye nemishini engaphezu kweshumi ephethwe abantu ngenhloso yokufinyelela nokufunda eNyangeni. Isigameko esiyingqopha-mlando sokwehla ngempumelelo enyangeni nokubuyela ngokuphepha eMhlabeni senzeka ngo-1969 ngemishini ye-Apollo 11 Le mpumelelo eyingqopha-mlando yayiholwa uNeil Armstrong, owaba ngusonkanyezi wokuqala ukubeka unyawo endaweni yenyanga. Ngokuvamile kuthatha cishe izinsuku ezintathu ukuthi irokhethi lihambe lisuka eMhlabeni liye eNyangeni.
Izici zesathelayithi yethu
INyanga inezici ezihlukile eziyehlukanisa kwezinye izindikimba zasemkhathini ohlelweni lwethu sonozungezilanga. Izici ezimbalwa eziphawulekayo zihlukanisa iNyanga, kuhlanganise nalokhu okulandelayo:
- Iwukuphela kwesathelayithi yemvelo yoMhlaba futhi itholakala endaweni engamakhilomitha angu-385.000 ukusuka emhlabeni wethu.
- Phakathi kwezinhlobo eziningi zezinyanga ezingaphezu kwekhulu namashumi ayisishiyagalolunye ezizungeze amaplanethi ahlukahlukene kuSolar System yethu, le nyanga ithatha indawo ehloniphekile yokuba eyesihlanu ngobukhulu.
- Uma uqhathaniswa nobukhulu boMhlaba, ucishe ube ingxenye yesine yobukhulu bawo.
- Ukuminyana kwale nto kungaphansi ngo-40% uma kuqhathaniswa noMhlaba.
- Ubuso benyanga bumangelengele futhi buphawuleka ngemigodi eminingi ebangelwa ukushayisana kwezinto ezinkulu ezingene ngempumelelo emkhathini wayo othambile. Ngaphandle kwalokho, Inyanga inendima ebalulekile ekugcineni umhlaba uzinzile nesimo sezulu.
- Umsebenzi wokuzamazama komhlaba kule ndawo mncane futhi kunokuntuleka okukhulu kokushisa okuvela enkabeni yayo. Ngokungafani noMhlaba, awunawo amandla kazibuthe; Nokho, amatshe athile ebusweni bawo abonisa ikhwalithi kazibuthe ehlala njalo.
Ukwakheka nokubunjwa kweNyanga
INyanga yakhiwe ngezingqimba eziningana, okuhlanganisa:
- I-crust ingafaniswa ne-lunar landscape, egcwele ama-crater amaningi.
- Ingubo, okuwungqimba olulandela uqweqwe, ungqimba oluvelele. Igobolondo eliqinile elishintshela esimweni esiqinile kancane njengoba lisondela emnyombweni wenyanga. Ngaphakathi kwesigqoko kukhona amaminerali afana ne-magnesium, i-silicon, i-iron ne-calcium, kanye ne-oxygen namadwala e-basaltic.
- I-lunar core yakhiwe isikhungo sensimbi esiqinile esizungezwe ungqimba lwensimbi ewuketshezi, okuyenza ibe ingxenye engaphakathi kakhulu yendikimba yasezulwini.
Kuye kwahlongozwa imibono eminingana ukuchaza umsuka weNyanga. Ukwakheka kweNyanga kwenzeka eminyakeni engaphezu kwezigidi ezine edlule, okuyinto ikhiqize imibono eminingi mayelana nemvelaphi yayo kanye nendlela yokudalwa kwayo. I-hypothesis ekhona iphakamisa ukuthi kube nokushayisana phakathi koMhlaba neplanethi esafufusa, okubangele ukuthi imfucumfucu yomthelela ihlale emzileni womhlaba. Ngokuhamba kwesikhathi, le mfucumfucu yanqwabelana futhi yahlangana ukuze yenze iNyanga njengoba ikhona namuhla.
Indlela yeNyanga ezungeza uMhlaba, eyaziwa ngokuthi i-lunar orbit, ilandela indlela ephikisana newashi esesimweni se-ellipse.
Ukunyakaza
Ukunyakaza kweNyanga kungachazwa kanje:
- Inyanga yenza umnyakazo ozungezayo kuyilapho izungeza ku-eksisi yayo.
- Umnyakazo owaziwa ngokuthi ukuhumusha ubandakanya iNyanga ezungeza Umhlaba.
Kuthatha cishe izinsuku ezingama-28 ukuthi iNyanga iqedele ukuphenduka okukodwa okugcwele, okuhlanganisa kokubili ukujikeleza kwayo eksisini yayo kanye nokuzungeza kwayo emhlabeni. Ijubane lokuzungeza kweNyanga lihambisana nelomnyakazo wokuhumusha woMhlaba.
Amandla adonsela phansi ezindikimba zasemkhathini asebenzisana ngendlela yokuthi ukunyakaza okuhambisanayo kwenzeke. Ngenxa yalokhu kuvumelana, uMhlaba uhlala ubona uhlangothi olufanayo lweNyanga, kuyilapho uhlangothi oluphambene, oluhlala lungabonakali, lwaziwa ngokuthi "uhlangothi olukude lweNyanga."
Ukubaluleka kweplanethi enguMhlaba
INyanga ibalulekile ngenxa yekhono layo lokuba nomthelela ezintweni eziningi eMhlabeni, okuhlanganisa:
- Ukuncipha nokugeleza kwamagagasi olwandle kuthonywa indlela iNyanga eyilandelayo njengoba izungeza Umhlaba. Le ndlela ilandela ukuma kwe-elliptical, okwenza iNyanga isondele emhlabeni wethu ngezikhathi ezithile. Njengoba izimiso zefiziksi zisho, izinto ezisondelene kakhulu zidonselana ngamandla adonsela phansi. Ngenxa yalokho, njengoba iNyanga isondela eMhlabeni, amandla adonsela phansi ewasebenzisayo abangela ukuphakama kwezinga lamagagasi, njengoba amanzi edonselwa ebukhoneni beNyanga.
- Isimo sezulu somhlaba sithonywa amandla adonsela phansi phakathi koMhlaba neNyanga, okwenza amagagasi ashintshe futhi ekugcineni abangele ukushintsha kwesimo sezulu. Lesi simo esingokwemvelo sidlala indima ebalulekile ekugcineni ukulingana okuvamile kweplanethi.
Ingabe Inyanga iyiplanethi?
Ukuze kuhlangatshezwane nemibandela esungulwe yi-International Astronomical Union (IAU) yokuhlukaniswa kwamaplanethi, indikimba yasezulwini kufanele izungeza iLanga ngokuqondile. Ubukhulu beNyanga buyivimbela ukuthi ifinyelele esimweni esiyindilinga ngenxa yamandla ayo adonsela phansi., ngokungafani namaplanethi, ayindikimba yasezulwini enobukhulu obanele ukuze kuzuzwe lokhu.
Ukuntuleka komzila ochaziwe kungenye ingxenye ebalulekile yeNyanga. Ngokwencazelo enikezwe i-International Astronomical Union (IAU), amaplanethi kumele ngabe asuse ukuzungeza kwawo amabhizinisi amancane. Kodwa-ke, iNyanga ayihlangabezani nalesi simiso njengoba ihlala ndawonye nama-asteroid ambalwa nezindikimba zasezulwini ngaphakathi komjikelezo wayo.
Ngethemba ukuthi ngalolu lwazi ungafunda okwengeziwe mayelana nesathelayithi yethu futhi wazi ukuthi kungani iNyanga ingelona iplanethi.