Kutheni sisoloko sibona icala elinye lenyanga?

isizathu sokuba sisoloko sibona icala elinye lenyanga

Sonke siyazi ukuba iNyanga ihlala isibonisa ubuso obufanayo, oko kukuthi, ukusuka eMhlabeni asikwazi ukubona ubuso obufihliweyo beNyanga. Ngelishwa, le nyaniso ibangele abaninzi bakholelwa ukuba inyanga ayijiki. Abantu abaninzi abazi kutheni sisoloko sibona icala elinye lenyanga.

Ngenxa yesi sizathu, siya kunikela eli nqaku ukuba sikucacisele ngesinyathelo ngesinyathelo ukuba kutheni sihlala sibona icala elifanayo lenyanga.

Inyanga izijika ngokwayo

ukujikeleza kwenyanga

Okokuqala, kufuneka uqonde indlela inyanga ehamba ngayo emhlabeni (inguqulelo), ngoko unokuqonda ukuba kutheni inyanga ijikeleza. Eli xesha lokuguqulelwa kwenyanga ziintsuku ezingama-27,3, nto leyo ethetha ukuba ukuba kukho inyanga epheleleyo ngobu busuku, inyanga iya kuba kwisigaba esifana ncam nanamhlanje kangangeentsuku ezingama-27,3. Xa inyanga ijikeleza umhlaba, nayo iyajikeleza.

Inqaku eliphambili apha sisixa sexesha olichitha usenza zombini iintshukumo. Enyanisweni, inyanga ithatha kwaeentsuku ezingama-27,3 ukugqiba ujiko-jikelezo olunye olujikeleze uMhlaba njengoko kuthatha ukugqiba ujikelo olunye olujikeleze iaxis yayo. Yile ntshukumo yokuvumelanisa, ukuhambelana kwale ntshukumo, ukuba sihlala sibona ubuso obufanayo besathelayithi yethu yendalo.

Owona mba ubalulekileyo emva koku kungqamana okuqaqambileyo sisenzo somxhuzulane. Umxhuzulane weNyanga uyawohloka kancinane uMhlaba kwaye wenze ukuba amaza asebenze lula. Ngendlela enye, Umxhuzulane womhlaba "utsala" enyangeni, udala iqhuma elifana nebhuleki enyangeni. Esi siqhoboshi sithoba isantya sokujikeleza kwenyanga kwisantya esijikelezayo sangoku.

Xa oko kusenzeka, Malunga ne-4.500 yeebhiliyoni zeminyaka eyadlulayo, iNyanga "yavalwa" yinto ebizwa ngokuba yi-tidal forces, kwaye isibonise ubuso obufanayo ukusukela ngoko. Kukwakho nomkhwa wokucinga ukuba icala esingaliboniyo libanda kuneli silibonayo kuba aliyifumani imitha yelanga. Nangona kunjalo, oku akuchanekanga. Omabini amacala eNyanga, okanye indawo yonke yenyanga, afumana umlinganiselo ofanayo wemitha yemitha ngexesha lokujikeleza kwawo eMhlabeni.

Kutheni sisoloko sibona icala elinye lenyanga?

Kutheni sisoloko sibona icala elinye lenyanga?

Uninzi lweeplanethi ezikwisijikelezi-langa zineenyanga. Umzekelo, IMars ineenyanga ezimbini, iJupiter 79 kunye neNeptune 14. Ezinye zinomkhenkce, ezinye zinamatye, ezinye zisebenza ngokwejoloji, kodwa ezinye azinamsebenzi kangako. Kodwa kuthekani ngenyanga? Idibana ngantoni loo nto?

Kukho impendulo elula kulo mbuzo: inyanga ifana neqabane lomdaniso ogqwesileyo, lihlala lijonge iqabane layo: lihlala lijonge eMhlabeni ngobuso obufanayo. Ubuso "bohlukile" kuba inyanga ithatha ixesha elilinganayo ukujikeleza i-axis yayo njengoko isenza ukujikeleza uMhlaba.

Oko kulingana neentsuku ezingama-27, ngoko sihlala sibona i-hemisphere yenyanga efanayo. Le yinto ebizwa ngokuba yi-gravitational coupling. Okanye into efanayo: ukujikeleza kwayo kunye neentshukumo zokuguqulela zihambelana, ngoko sihlala sibona ubuso obufanayo.

Singaziqhelanisa ngokwethu ngaphandle kokuhamba siye emajukujukwini kwaye simke kuyo: thatha nje intonga kunye namaphepha amabini anemibala emibini kwaye uyijikelezise ikujikeleze ngelixa ijikeleza yodwa. Ke ukuba ubona iphepha elityheli ekuqaleni, uya kubona iphepha elityheli kuphela ixesha eliseleyo. Oku koko kwenzeka kwinyanga yesihlanu ngobukhulu kwisixokelelwano sezijikelezi-langa.

Kuthekani ngecala elimnyama lenyanga?

Inyanga ephelele

Kodwa kukho okungakumbi, kuthekani ngobo buso singabuboniyo? Ukususela ngowe-1959, abantu banokubona imifanekiso ngenxa ye-Soviet space probes. Namhlanje sifumene imifanekiso enokulungiswa okuphezulu ukusuka macala onke kumgama, kwaye siyabona ukuba inecratered ngakumbi: kungenxa yokuba ityhileke ngakumbi kwindawo engaphandle.

Ngaloo ndlela, icala elibonakalayo lenziwe ngama-40% olwandle, kwaye indawo enkulu yomhlaba ivela kwi-volcanic flow. Nangona kunjalo, kwicala elifihliweyo kuphela i-8%. Yimfihlakalo namhlanje, kwaye ngokuchanekileyo kukuzama ukuqonda ukuba kutheni ama-crusts wamacala omabini ahluke kangaka.

Ngokophononongo lwaseTshayina luka-2019 olwenziwe yiTshintsho 4, olu manyano lunokuba nefuthe: “Xa uMhlaba neNyanga zazisenza, yayizizibane ezikhanyayo. Iisathelayithi zaba ncinci kwaye zaphola ngokukhawuleza, kodwa isijikelezi-langa sethu saqhubeka sikhupha ubushushu. Ngelo xesha, i-orbits kufuneka ibambekile, kwaye ubushushu buthintele ukwakheka kwe-crust engqindilili kwicala elibonakalayo, "wachaza.

Iintshukumo zenyanga

Ekubeni phakathi kwenyanga noMhlaba kukho amandla omtsalane, kukho neentshukumo zendalo zale satellite. Njengeplanethi yethu, ineentshukumo ezimbini ezizodwa ezaziwa njengokujikeleza malunga ne-axis yayo kunye noguqulelo kwi-orbit ejikeleze uMhlaba. Ezi ntshukumo zizinto ezibonisa inyanga kwaye zihambelana namaza kunye nezigaba zenyanga.

Ngexesha leentshukumo ezahlukeneyo anazo, uchitha ixesha elithile ukuze azigqibe. Umzekelo, umjikelo opheleleyo wokuguqulela uthatha umndilili weentsuku ezingama-27,32. Okumangalisayo kukuba, oku kuthetha ukuba inyanga ihlala isibonisa ubuso obufanayo kwaye ibonakala ngathi ilungiswe ngokupheleleyo. Oku kungenxa yezizathu ezininzi zejometri kunye nolunye uhlobo lwentshukumo ebizwa ngokuba yi-lunar libration esiya kuyibona kamva.

Xa umhlaba ujikeleza iLanga, Inyanga nayo iyayenza kodwa kuMhlaba, kwicala laseMpuma. Umgama wenyanga ukusuka eMhlabeni kuyo yonke intshukumo yayo uyahluka kakhulu. Umgama phakathi kweplanethi kunye nesathelayithi yi-384 km. Lo mgama uyahluka ngokupheleleyo ngokuxhomekeke kumzuzu ekuwo umjikelo wawo. Kuba i-orbit ibhida kwaye ngamanye amaxesha ikude, iLanga linempembelelo enkulu ngamandla alo omxhuzulane.

Iimpawu zenyanga azilungiswanga kwaye zihamba iminyaka eyi-18,6 yokukhanya. Oku kwenza ukuba i-elliptical yenyanga ingagungqi kwaye i-perigee yenyanga yenzeka kuyo yonke iminyaka eyi-8,85. Le perigee kuxa inyanga ikwisigaba sayo esipheleleyo kwaye ikufutshane kakhulu kwi-orbit yayo. Kwelinye icala, i-apogee kuxa ikude kakhulu kwi-orbit.

Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga nokuba kutheni sihlala sibona icala elifanayo lenyanga.


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  1.   Cesar sitsho

    Njengesiqhelo, ulwazi osinika lona lusemagqabini, ke ndiyakumema ukuba uqhubeke nokutyebisa ulwazi lwethu...