ukujikeleza komhlaba

intshukumo yokujikeleza komhlaba

Siyazi ukuba isijikelezi-langa sethu sineentlobo ezininzi zokushukuma kwesixokelelwano selanga. Enye yezona zinto zibalulekileyo kunye neyona nto ibangela ukuba imini nobusuku intshukumo ye ukujikeleza komhlaba. Le yintshukumo ejikelezayo yoMhlaba yintshukumo ejikelezayo yeplanethi yethu kwicala lempuma-ntshona elijikeleze i-axis yoMhlaba, ehlala malunga nosuku olunye okanye iiyure ezingama-23, imizuzu engama-56 kunye nemizuzwana eyi-3,5. Le ntshukumo, kunye noguqulelo olujikeleze ilanga, yeyona ntshukumo ibalulekileyo onayo uMhlaba. Ngokukodwa, ukunyakaza okujikelezayo kunempembelelo enkulu kubomi bemihla ngemihla bezinto eziphilayo.

Ngesi sizathu, siza kunikezela eli nqaku ukukuxelela yonke into okufuneka uyazi malunga nokujikeleza koMhlaba kunye neempawu zawo.

Iimpawu eziphambili

iintshukumo zomhlaba

Isizathu sokuba umhlaba ujikeleze kwiaxis yawo sikwimvelaphi yesixokelelwano sezijikelezi-langa. Kusenokwenzeka ukuba ilanga lichithe ixesha elininzi lodwa emva kokuba umxhuzulane wenza kube nokwenzeka ukuvela kwi-amorphous matter esesithubeni. Xa kusenziwa, iLanga lafumana ukujikeleza okubonelelwa ngamafu ezinto zokuqala.

Ezinye zezinto ezibangela ukuba iinkwenkwezi zixinzene zijikeleze ilanga ukuze zenze iiplanethi nazo zifumana amandla e-angular ukusuka kwilifu lokuqala. Ngoko, zonke iiplanethi (kubandakanywa noMhlaba) zinojikelezo lwazo lwasempuma-ntshona, ngaphandle kweVenus kunye neUranus, ezijikeleza kwelinye icala.

Abanye bakholelwa ukuba i-Uranus yangqubana nenye iplanethi yoxinaniso olufanayo kwaye yatshintsha i-axis yayo kunye nesalathiso sokujikeleza ngenxa yempembelelo. kwi venus, ubukho bamaza erhasi bunokucacisa ukuba kutheni icala lokujikeleza libuya umva kancinci ngokuhamba kwexesha.

Iziphumo zentshukumo yokujikeleza komhlaba

ukujikeleza komhlaba

Njengoko kukhankanyiwe ngasentla, ukuqhubeka kwemini nobusuku, kunye nokutshintsha kwazo kwimini nakwiqondo lobushushu, zezona ziphumo zibalulekileyo zokujikeleza koMhlaba. Nangona kunjalo, impembelelo yakhe idlulela ngaphaya kwesi sibakala siqinisekileyo:

  • Ukujikeleza komhlaba kunxulumene ngokusondeleyo nokumila komhlaba. Umhlaba awuyongqukuva egqibeleleyo njengeebhiliyoni. Njengoko ijikeleza, kudalwa amandla okulwa abangela ukuba i-ikhweyitha yande ize emva koko ibe mcaba ezipalini.
  • Ukuguqulwa koMhlaba kubangela ukuguquguquka okuncinci kwixabiso le-g lesantya somxhuzulane kwiindawo ezahlukeneyo. Ngoko, umzekelo, ixabiso lika-g kwiipali likhulu kunexabiso kwi-ikhweyitha.
  • Intshukumo ejikelezayo ichaphazela kakhulu ukusasazwa kwemisinga yolwandle kunye nomoya, ekubeni umoya kunye nezihlwele zamanzi zifumana ukutenxa kwi-orbital kwelinye icala (i-hemisphere esemazantsi), ngokwewotshi (i-hemisphere esemantla) kunye newotshi (i-hemisphere engasentla).
  • Imimandla yexesha idalwe ukulawula ukuhamba kwexesha kwindawo nganye njengoko ilanga liqaqamba okanye libe mnyama kwiindawo ezahlukeneyo zomhlaba.

Impembelelo yeCoriolis ekujikelezeni koMhlaba

ukujikeleza komhlaba

Isiphumo seCoriolis sisiphumo sokujikeleza koMhlaba. Ekubeni yonke imijikelezo inesantya, uMhlaba awuthathwa njengesakhelo sereferensi engasebenziyo, efunekayo ukusebenzisa imithetho kaNewton.

Kule meko, okubizwa ngokuba yi-pseudoforces kuvela, apho umthombo wamandla ungekho ngokwasemzimbeni, njengamandla e-centrifugal afunyanwa ngabahlali bemoto xa bejikeleza, kwaye baziva ngathi batyekele kwicala elinye.

Ukuze ube nomfanekiso-ngqondweni wempembelelo yawo, qwalasela lo mzekelo ulandelayo: Kukho abantu ababini uA no-B eqongeni abajikelezayo ngasekunene, bobabini abamileyo xa bethelekiswa nalo. Umntu A uphosa ibhola kumntu u-B, kodwa ithi ibhola ifike ku-B, ube sele eshukuma kwaye ibhola ijike umgama s ngasemva kuka-B.

Amandla e-Centrifugal ayinamsebenzi kule meko kuba ikude neziko. La ngamandla eCoriolis, kwaye isiphumo sawo kukuphambukisa ibhola ecaleni. Kwenzeka ukuba zombini u-A kunye no-B banezantya zokuya phezulu ezahlukeneyo kuba zikwimigama eyahlukileyo ukusuka kwi-axis yokujikeleza.

Ezinye iintshukumo zoMhlaba

Inguqulelo

Siyaqhubeka nokuhlalutya intshukumo yesibini entsonkothileyo yoMhlaba. Yintshukumo uMhlaba onayo equka ukwenza ujikelo kumjikelezo wawo ujikeleze iLanga. Lo mjikelo uchaza intshukumo ye-elliptical kwaye uyenza ukuba isondele eLangeni kwaye ngamanye amaxesha kude kude.

Umhlaba uthatha iintsuku ezingama-365, iiyure ezi-5, imizuzu engama-48 kunye nemizuzwana engama-45 ukwenza uguqulo olupheleleyo kwi-axis yayo yokuguqulela. Ke ngoko, rhoqo emva kweminyaka emine sinonyaka womnqantsa apho uFebruwari unosuku olunye. Oku kwenziwa ukulungisa iishedyuli kwaye kuhlala kuzinzile.

Umjikelezo woMhlaba malunga neLanga unomjikelezo weekhilomitha ezingama-938 ezigidi kwaye ugcinwe kumgama ophakathi kwe-150 km ukusuka kuwo. Isantya esihamba ngaso si-000 km / h. Ngaphandle kwesantya esikhulu, asiwuxabisi umbulelo womxhuzulane woMhlaba.

Ukulungiselela

Lutshintsho olucothayo noluthe chu ukuba uMhlaba unalo kwi-orientation ye-axis yokujikeleza. Le ntshukumo ibizwa ngokuba yi-precession of the Earth kwaye ibangelwa ngumzuzu wamandla okwenziwa yi-Earth-Sun system. Le ntshukumo ichaphazela ngokuthe ngqo ukuthambekela apho Imitha yelanga ifikelela emhlabeni. Okwangoku, le axis inotyekelo lwe-23,43 degrees.

Oku kusixelela ukuba i-axis yoMhlaba ejikelezayo ayisoloko ikhomba kwenkwenkwezi enye (i-Polar), kodwa ijikeleza ngasekunene, ibangela ukuba uMhlaba uhambe ngendlela efana naleyo yomphezulu. Uguqulo olunye olupheleleyo kwi-precession axis luthatha malunga nama-25.700 eminyaka. ngoko asiyonto inoxabiso ngokomlinganiselo womntu. Nangona kunjalo, ukuba silinganisa kunye nexesha lejoloji sinokubona ukuba inokubaluleka okukhulu kwixesha lomkhenkce.

Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga nokuhamba kokujikeleza komhlaba kunye neempawu zawo.


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