Njengoba nje yonke into inesiqalo, nayo inesiphelo. Lesi sisekelo sisebenza ebukhoneni ngokwaso, kusukela ekuphileni kuya kuzo zonke izinto eziyingxenye yendawo yonke. Ngaleyo ndlela, ngokuvamile kungokwemvelo ukuzibuza ukuthi ukuphela kwakho konke kuzoba nini nokuthi isayensi izoba nempendulo yini. Kodwa, ngokujwayelekile, izazi zezinkanyezi zithini ngokuphela koMhlaba?
Ungakhathazeki, impela ukuphela kwesikhathi kusekude kakhulu. Ngokusho komphakathi wesayensi, esikhathini esimaphakathi noma eside, abukho ubufakazi bezinsongo zangempela ze-cosmic. Nokho, ikusasa aliqinisekile futhi alinakuphikiswa, ngakho-ke kungenzeka noma yini.
Ungase ube nesithakazelo esihlokweni sethu: Ungathanda ukwazi ukuthi amafu ayini? Yazi ngokujulile!
Ukuphela Komhlaba. Kungani lokhu kukhathazeka kungathandeki?
Naphezu kobufakazi bomphakathi wesayensi obusekela isimangalo sokuthi akukho ngozi eMhlabeni, iqiniso lihlukile kakhulu. Iningi lomphakathi limatasa ngokubikezela okuzokwenzeka kule planethi maduze nje, lingayinaki nhlobo iqiniso lokuthi lezi zenzakalo zingaphezu kwamandla omuntu.
Umthombo: Google
Kusukela kudala, ukuphela koMhlaba bekuyingxenye yomcabango womlando wesintu. Ukwesaba nokungaqiniseki kokungazi ukuthi kufanele sisabele kanjani ezinhlekeleleni kubeka isisekelo sokubuza umbuzo ofanayo: Kuyoba nini ukuphela?
Ngokusekelwe kulokhu, kuye kwavela zonke izinhlobo zezinkolelo-mbono zobuqili, zishaya indiva ngokuphelele iziphetho zesayensi kanye nezibikezelo. Edume kakhulu kulezi kwakuyileyo ephathelene nekhalenda lamaMaya ngo-2012.
Kulungile, ngokusho kokuhlaziywa okuthile ngokuntuleka kokuqina, babeka ukuphela koMhlaba ngo-December 21, 2012. Nokho, njengoba bekulindelekile futhi, ngemva kwezixwayiso zesayensi ukuthi ngeke kwenzeke, empeleni, akwenzekanga lutho.
Ngale kwaleyo ndaba, akukaze kube khona inkolelo-mbono yozungu eyaba khona emphakathini jikelele. Noma kunjalo, isayensi yaphinde yanqoba. Ngaphezu kwalokho, kusukela ngaleso sikhathi, izazi zezinkanyezi bezilokhu zinesibopho sokuphikisa noma yiziphi izimangalo ezinjalo. Ngakho-ke, ngamafuphi, ukuphela kwezikhathi kusalokhu kungaqinisekile futhi, kuze kube manje, akunakwenzeka ukuthi kwenzeke.
Ngakho... yini engabangela ukuphela koMhlaba ngokwesayensi?
Ngokusobala, izinkolelo-mbono zozungu azihambisani namaqiniso asekelayo. Naphezu kweqiniso lokuthi ziyizithiyo ezilula ezingenangqondo, abantu banqotshwa ukwethuka kanye ne-echo yomphakathi.
Ukuze kushintshwe leli qiniso, kubalulekile ukuqonda izingozi zangempela ezisongela iplanethi. Nakuba ukuphela koMhlaba kungenakwenzeka kule nkathi yamanje, akusho ukuthi akunazo nhlobo izingozi.
Khumbula ukuthi indawo yonke cishe ayinamkhawulo, ngakho-ke iqukethe zonke izinhlobo zezinto ezingaba yingozi. Phakathi kwazo kukhona ama-asteroid ayimfihlakalo futhi angaqondakali, izinto umphakathi ozihlukanisa njengezibikezelo zenhlekelele. Ungafunda kabanzi ngama -asteroid angaba yingozi ukuze ufunde kabanzi ngalesi sihloko.
Kodwa kukhona nezinsongo ezingenzeka ebusweni boMhlaba nasemkhathini wawo. Yilezi zenzakalo ezisongelayo ezibangela ukukhathazeka okukhulu phakathi kochwepheshe. Zingase zingahambisani nokuphela koMhlaba, kodwa uma zingaxazululwa kahle, zingaletha izikhathi ezinzima esikhathini esizayo.
I-asteroid Apophis kanye nokubikezela kwayo ngomhlaba
Itholwe ngoJuni 2004, i-Apophis iyinkanyezi enhle kakhulu ebeka usongo eMhlabeni. Inezimpiko ezifinyelela ku-370 wamamitha ububanzi, isici esibi kakhulu.
Kulokho, kwakungo-2004 lapho i-Apophis yabangela khona isiyaluyalu esikhulu emphakathini wesayensi. Ngemva kokuyibona, i-asteroid, ngokwezibalo ezithile, yahlukaniswa njengosongo lwangempela nolunqunyelwe.
Isizathu esiyinhloko esinikeziwe ukuthi i-Apophis yayizodlula eduze ngokwanele eMhlabeni ukuze idonswe yinsimu yayo yamandla adonsela phansi. Kodwa-ke, kamuva, nanamuhla, ukuhlangana okulandelayo ne-Apophis, okuhlelelwe u-2068, akunangozi. Noma kunjalo, kubalulekile ukuhlala unolwazi mayelana nendlela yayo kanye nemiphumela engaba khona, ongayithola esihlokweni sethu mayelana nama-asteroid angathinta uMhlaba.
I-colossus Bennu nobukhulu bayo obumangalisayo
Ngaphandle kwe-Apophis, enye i-asteroid esanda kufundwa yi-Bennu , into enkulu yasemkhathini eyabonwa ngo-1999 eSocorro, e-USA. Njengoba inobubanzi obungaphezu kwamamitha angu-480, ingenye yamadwala asemkhathini amakhulu kakhulu eduze komjikelezo woMhlaba.
Eqinisweni, izici zayo ezihlukile zenze ukuthi ibe yisihloko sezifundo zasemkhathini ze -NASA . Phakathi kwazo, i-OSIRIS space probe ihlela ukuqoqa izinto ezinamatshe amaningi ngangokunokwenzeka ukuze ihlaziye i-asteroid. Imiphumela etholakele izokwembula izimfihlakalo ezengeziwe ngayo kanye nokuziphatha kwayo.
Nakuba ingabi usongo oluqondile eMhlabeni esikhathini esizayo, iBennu izoqhubeka nokuhlolwa. Ngenxa yokuthi iyi-asteroid eyimfihlakalo futhi engaguquki, asazi kahle ukuthi kuzokwenzekani emashumini ambalwa eminyaka ezayo. Uma unesithakazelo, ungafunda isihloko sethu ngezingxenye zoMhlaba ukuze uqonde kangcono umongo wezifundo zethu zamaplanethi.
Ukufudumala kwembulunga yonke kuyiqiniso
Wonke umphakathi wesayensi, ngale kwesayensi yezinkanyezi, ugcizelele ingozi ebangelwa ukukhishwa kwe-CO₂ ngokweqile. Ngokuqoqwa kwaleli gesi nezinye, ezinemiphumela eyingozi, iplanethi iqala ukushintsha kakhulu.
Ngale ndlela, ukufudumala komhlaba sekushiye uphawu lwako isikhathi esithile manje. Ukushintsha kwesimo sezulu, kanye nokuncibilika kwezinguzunga zeqhwa, kumane nje kuyizimpawu zalezi zinkinga ezikhathazayo. Mhlawumbe ukuphela koMhlaba akukhona emkhathini, kodwa kusemhlabathini wawo, ngaphandle kokuthi kucatshangelwe izingozi zezehlakalo zemvelo ezingasongela iplanethi. Ukuze sijule kakhulu kulesi sihloko, siphakamisa ukuthi sibukeze isihloko sethu ngemiphumela yeziphepho zelanga eMhlabeni.
Kuyoba yini ukuphela komhlaba ngempela? Uyafuna ngempela ukwazi?
Umthombo: Google
Ngokuntwela kokusa ngakunye nangokuthuthuka kwezobuchwepheshe, ukuthola ukuthi kuzoba yini ukuphela komhlaba kuyisimo esinzima. Ngaphezu kwezimo ezingaba khona eseziphakanyisiwe, kukhona ezinye ezimbalwa ezingangena kulolo hlu.
Kodwa-ke, umphakathi wesayensi ucacisa ukuthi akukho mbono omubi ngoMhlaba emashumini eminyaka ezayo. Nokho, umthelela womuntu emvelweni kumele ulawulwe ukuqinisekisa lokhu.
Uma kungenjalo, impendulo kuphela enengqondo yalokho okuyoba ukuphela koMhlaba, igxile kakhulu eqinisweni lokuqothulwa kwelanga. Kunjalo, inkanyezi engumama ayisona isidalwa esingapheli, ngakho-ke ukuguga kwayo kwesikhathi esizayo kuyisimo esiphikisa kakhulu.
