Yini inyanga

Ubuso benyanga esibubonayo kuphela

Iplanethi yethu inomzimba wasezulwini ozungeza phezu kwayo owaziwa njengenyanga. Kodwa-ke, kusekhona esikubonayo phakathi nobusuku, abantu abaningi abazi ngempela yini inyanga. Sikhuluma ngesathelayithi yethu edala amandla adonsela phansi aqala amagagasi nezinye izici eMhlabeni. I-satellite yethu inezici ezihlukile nokunyakaza okuhlukile okuthakazelisa kakhulu ukukwazi.

Ngakho-ke, sizonikezela le ndatshana ukuze sikutshele ukuthi iyini inyanga, yiziphi izici zayo, ukunyakaza kwayo okuyinhloko kanye nemingxuma yayo.

Yini inyanga

Inyanga nomhlaba

Inyanga iyisathelayithi yemvelo yomhlaba futhi ukuphela kwesathelayithi enomhlaba. Vele, ngumzimba wasezulwini onamadwala ngaphandle kwamasongo noma iziphuphutheki. Kunemibono eminingi echaza ukwakheka kwayo, kodwa okwamukelwa kakhulu ukuthi imvelaphi yayo yenzeka cishe eminyakeni eyizigidi ezingama-4,5 edlule, ngemuva kokuthi into efana neMars ishayisane noMhlaba. Inyanga yakhiwa ngalezi zingcezu futhi, ngemuva kweminyaka eyizigidi eziyi-100, i-magma encibilikisiwe yaqina futhi yakha uqweqwe lwenyanga.

Inyanga icishe ibe ngamakhilomitha angama-384 ukusuka emhlabeni. Ngemuva kwelanga, kungumzimba wasezulwini okhanyayo obonwe ebusweni bomhlaba, yize ubuso bawo empeleni bumnyama. Izungeza umhlaba ezinsukwini ezingama-400 zomhlaba (izinsuku ezingama-27 noma amahora angama-27) futhi ijikeleza ngejubane elifanayo. Ngoba ijikeleza ngokuvumelanayo nomhlaba, inyanga inobuso obufanayo nobakhe. Ngenxa yobuchwepheshe bamanje, kuyaziwa ukuthi "ubuso obufihlekile" bunemigodi, izindawo ezibizwa ngokuthi ama-thalassoid, futhi azinalo ulwandle.

Ukubukwa kwenyanga kudala njengabantu. Igama lakhe livela empucukweni eminingi futhi liyingxenye yezinganekwane zabo. Inethonya elibalulekile kumjikelezo woMhlaba: ilawula ukuhamba koMhlaba ku-eksisi yawo, okwenza isimo sezulu sizinze. Yini enye, Kuyimbangela yamagagasi asemhlabeni ngoba akhiqizwa ukukhanga kwamandla adonsela phansi, elihudula amanzi ngamandla ngakolunye uhlangothi bese liwadonsela kolunye, lidale amagagasi aphezulu namaza aphansi.

Yikuphi ukunyakaza okwenziwa yinyanga?

Ubuso benyanga

Ngenxa yobukhona bamandla adonsela phansi phakathi kwenyanga nomhlaba, le satellite nayo inokunyakaza kwemvelo. Njengeplanethi yethu, ineminyakazo emibili eyehlukile, ebizwa ngokujikeleza nokuhumusha emhlabeni jikelele. Lokhu kunyakaza kuyisici senyanga futhi kuhlotshaniswa namagagasi nesigaba senyanga.

Udinga isikhathi esithile ukuze akwazi ukuqedela ukunyakaza kwakhe. Ngokwesibonelo, umbuthano ophelele wokuhumusha uthatha isilinganiso sezinsuku ezingama-27,32. Kuyathakazelisa ukuthi lokhu kwenza inyanga ihlale isibonisa ubuso obufanayo, futhi ibonakala ilungiswe ngokuphelele. Lokhu kungenxa yezizathu eziningi zejiyomethri nakokunye ukunyakaza okubizwa ngokuthi ukudlidliza kwenyanga.

Lapho umhlaba uzungeza ilanga, nenyanga nayo iyajikeleza, kepha emhlabeni isempumalanga. Phakathi nakho konke ukunyakaza, ibanga elisuka enyangeni liye emhlabeni lihluka kakhulu. Leli banga lincike ngokuphelele ekutheni usemzileni walo. Ngenxa yokuthi lo mzila uyisiphithiphithi futhi kwesinye isikhathi ukude, ilanga linethonya elikhulu kumandla alo adonsela phansi.

Ukuhamba kwesathelayithi yethu ejikelezayo kuvunyelaniswa nokuhumusha. Ihlala izinsuku ezingama-27,32, ngakho-ke sihlala sibona uhlangothi olufanayo lwenyanga. Lokhu kubizwa ngokuthi yinyanga engezansi. Ngesikhathi sokujikeleza kwayo, yakha i-angle yokuthambekela kwama-degree angama-88,3 maqondana nendiza ye-ellipse yokuhumusha. Lokhu kungenxa yamandla adonsela phansi akha phakathi kwenyanga nomhlaba.

Izici eziyinhloko

Inyanga inendawo enamadwala aqinile, futhi isici sayo esivelele kakhulu ukuba khona kwenani elikhulu lamakhorasi nezindishi. Ngoba umoya wayo ubuthakathaka kakhulu futhi ucishe ungatholakali, awukwazi ukumelana nomthelela wama-asteroid, ama-meteorite noma ezinye izidalwa zasezulwini, okubavumela ukuthi bashayisane nenyanga.

Umthelela uphinde wakhiqiza ungqimba lwemfucumfucu, okungaba ngamatshe amakhulu, amalahle, noma uthuli oluhle, olubizwa ngokuthi ungqimba oluguguliwe. Indawo emnyama yindawo yokugcotshwa ngodaka cishe eminyakeni eyizigidi eziyi-12-4,2 edlule, futhi indawo ekhanyayo yakha izindawo okuthiwa eziphakeme. Ngokuvamile, lapho inyanga igcwele, kubonakala sengathi yakha isithombe sobuso bomuntu noma unogwaja ngokusho kwamasiko athile, yize empeleni lezi zindawo zimelela ukwakheka okuhlukile neminyaka yedwala.

Umkhathi wayo, obizwa nge-exosphere, mncane kakhulu, ubuthakathaka futhi mncane. Ngenxa yalokhu kushayisana kwama-meteorite, ama-comet nama-asteroid anobuso avamile. Kuqoshwa imimoya kuphela engadala iziphepho zothuli.

Craters

yini inyanga

Ososayensi bebelokhu befunda ngobudala bamadwala kwiplanethi yethu nasenyangeni. Lawa matshe aqhamuka endaweni ebekiwe engacacisa ukuthi le crater yakhiwa nini. Ngokutadisha zonke izindawo zenyanga ezinombala okhanyayo futhi ezibizwa ngamathafa, ososayensi bathole imininingwane yokwakheka kwenyanga. Yakhiwa cishe eminyakeni eyizigidi ezingama-460 kuya kwezingama-380 edlule, futhi wonke amanye amadwala awela ebusweni benyanga abika ukuthi yakheka ngokushesha okukhulu. I-rock shower yamisa futhi kwakha izimbobo ezimbalwa kusukela ngaleso sikhathi.

Amanye amasampula edwala athathwe kulezi zingxenyana abizwa ngokuthi amabhishi kanye iminyaka yayo icishe ibe yiminyaka eyizigidi ezingama-3.800 kuya kwezi-3.100. Kukhona namasampula wezinto ezinkulu ezifana ne-asteroid ezishaya inyanga lapho idwala limile.

Ngokushesha ngemva kwale micimbi, udaka oluningi lwagcwalisa zonke izitsha futhi lwakha ulwandle olumnyama. Lokhu kuchaza ukuthi kungani kunemigodi embalwa olwandle, kepha kunemigodi eminingi ethafeni. Kungenxa yokuthi ubuso benyanga buhlaselwe yilezi zikhungo zomhlaba ngenkathi kwakhiwa isistimu yelanga, bekungekho ukugeleza okuningi kwethava ethafeni okwenze ukuthi iminyango yokuqala inyamalale.

Ingxenye ekude kakhulu yenyanga "inolwandle" olulodwa kuphela ngakho ososayensi bakholelwa ukuthi le ndawo imelwe ukunyakaza kwenyanga eminyakeni eyizigidi eziyizinkulungwane ezine edlule.

Ukufunda ama-craters enyangeni, kufanele siqonde ukuma kwenyanga. Namathafa amaningana ayeyisicaba noma ayekade eyingxenye yolwandle. Akumangazi ukuthi kukhona nolwandle olusenyangeni yenyanga. Enkulu kunazo zonke iMare Imbrium, ebizwa ngeMar de Lluvia ngeSpanishi, enobubanzi obungamakhilomitha angaba ngu-1120 XNUMX.

Ngiyethemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana nokuthi iyini inyanga nezimpawu zayo.


Okuqukethwe yi-athikili kunamathela ezimisweni zethu ze izimiso zokuhlelela. Ukubika iphutha chofoza lapha.

Yiba ngowokuqala ukuphawula

Shiya umbono wakho

Ikheli lakho le ngeke ishicilelwe. Ezidingekayo ibhalwe nge *

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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.