Ngaba wakha walibona ikhephu elinegazi kwimidiya yoluntu okanye nakweyiphi na imiboniso bhanya-bhanya yeTV? Ngaba uyoyika Ngaba uyifumene inomdla? Le nto ibizwa ngokuba yi-'Snow Snow ' Kwaye siza kukuxelela ukuba kutheni kwaye njani le nto ingaqhelekanga ibizwa ngokuba bubuchwephesha.
Yonke into esiza kukuxelela yona kweli nqaku iqokelelwa kwizifundo ezahlukeneyo kunye nezithuba zebhlog ezichaza le nto. Kodwa sele silindele ukuba ngaphezulu kwendalo, inokuba yinto enomsindo. Kwaye usenokuba uyazibuza, ngoba? Ewe, ngokomgaqo, kubonakala ngathi kungenxa yotshintsho lwemozulu. Esinye isalathiso sokwenzekayo kwiplanethi yethu.
Igazi leKhephu yintoni ngokwenene?
Ukuphendula oku, njengoko besesikuxelele ngaphambili, kuye kwafuneka siphande kwizifundo ezahlukeneyo nakumanye amazwe. Kodwa sifumene iimpendulo kwaye sinokukuxelela ukuba yintoni iGazi leKhephu.
Ngokobuchwephesha sinokubiza le nto njenge IChlamydomonas nivalis, kwaye isekwe kwinyani yokuba iintlobo ezahlukeneyo ze-algae eluhlaza, eziqukethe i-pigmentation ngaphakathi kuzo, kubandakanya obomvu, zingena kwinkqubo ye-photosynthesis kwaye emva koko zingcolise ikhephu. Ke, yiyo loo nto, ayilogazi embindini wekhephu, ayisiyiyo into yokuba nasiphi na isilwanyana okanye umntu ophe igazi kuyo okanye nantoni na enjalo. Ngokulula, kwizicatshulwa, lulwelwe.
Kuyinyani ukuba akukho mntu ukhe wabandezeleka ngaphezulu kwekhephu, kwaye akufuneki sikoyike, kodwa inyani yile ewe sisalathiso sokuba kukho into embi eyenzekayo kwiplanethi yethu kunye nendalo yayo nokuba kufuneka soyike ezinye iintlobo zezinto esizibangelayo. Esi siganeko, esihlala sibhidaniswa nezinye, sinokufana ne Ikhephu lekhephu, ekwanxulumene nokutshintsha kwemozulu.
Zonke ezi foto sizifumana ngekhephu ngombala obomvu zivela kwiindawo ezinje ngeAlps, iGreenland okanye iAntarctica uqobo. Kwenzeka ntoni ke kwezi ndawo ukuze kwenzeke le nto? ukuba sifudumeza iplanethi ngaphezulu kwento ekufuneka siyenzile. Le mimandla ifudunyezwe ngaphezu kwesiqhelo nakwilishwa lakho. Oku kubangela ukuba unyibilike kwaye kwa loo nto ibonakala ngathi ibangela iimeko ezifanelekileyo ukuba zivele kolu hlobo lwe-algae enemibala ukuze ichume.
Ukubonakala kokuqala kweGazi leKhephu
Las ukwenzeka okokuqala kwesi siganeko kubuyela ku-AristotleEwe, njengokuba uyifundile, kwimibhalo yakhe. Le nto ibisenzeka kumakhulu okanye kumawaka eminyaka apho kuyo yonke loo nto igcine ukudideka kwabantu abanyukayo abakhwela intaba, abakhweli beentaba, izendalo nabanye abantu abadlula kwiindawo ezibandayo kangangokuba kancinci kancinci bayazifudumeza.
Kule minyaka ukusukela kwinkulungwane ye-XNUMX BC, ifumene amagama ahlukeneyo, anjengekhephu levatala. Jonga ukuba le nto 'yendalo' inexesha lokuba yena ngokwakhe Amaxesha sele ebhale ngaye ngoDisemba 4, 1818.
Ukufumanisa kutshanje kungenxa yomphathi okhe waqaphela ubomvu obungaqhelekanga bomkhenkce ophume ekuvukeni kwakhe. Lo mkhenkce ubuphantsi kwezifundo ezahlukeneyo kunye nohlalutyo kuba khange banike ikhredithi kwaye akukho mntu wayekholelwa ukuba ngexesha elithile ikhephu elibomvu okanye ikhephu legazi liwile. Unokufunda ngakumbi malunga neziganeko ezifanayo kwinqaku lethu imvula ebomvu.
Yintoni eyafunyanwa kwezi zifundo zahlukeneyo zenziwa ngelo xesha kukuba ngeenyanga zobusika i IChlamydomonas nivalis, eyaziwa njenge-Blood Snow, iba yingasebenzi ngokupheleleyo. Kusentlakohlaza, ngokunyuka kobushushu kunye nokukhanya, apho iqala ukuqhakaza ngenxa yezondlo ezizifumana kwindawo engqongileyo, ezikhuthaza i-algae ukuba yande ngokunyibilika. Inkqubo yokunyibilika iyafana naleyo yenzeka ngayo Ukunyibilika kukaLarsen C.
Ekugqibeleni, yintoni ebangela le nto kukuba ukunyibilika kuyakhawuleza kwaye le ndawo ilahleka ngokuthe ngcembe inkangeleko yayo, into ethi kwiindawo ezibandayo kunye namanzi amaninzi afriziweyo angasifanelanga kwaphela.
Kutheni inyibilika ngaphambili? kuba umbala obomvu we-algae enombala ubonakalisa ukukhanya okuncinci ukusuka elangeni kwaye ke ngoko kubangela ukunyibilika okukhawulezayo kakhulu, kwishwangusha leplanethi. Ekugqibeleni, akukho nto ngaphandle kwesangqa esibi, kwaye nayiphi na imeko, iyingozi kwiplanethi yethu, ekubeni asifuni ngokupheleleyo ukuba iqhwa elinyibilikayo linyuke, kwaye kunye nalo, izinga lolwandle liphakame. Esi siganeko ngumzekelo wento efundwayo kwinkalo ye albedo kunye nokulinganisela kwamandla oMhlaba.
Ezinye izinto ezinomdla: Iinyembezi eziluhlaza
Iplanethi yethu igcwele olu hlobo lwesenzeko, kwiimeko ezininzi (phantse zonke) zibangelwa bubukho babantu kwaye ukukhawulezisa utshintsho lwemozulu ukuba nathi sizicaphukisa mihla le ngokungakhathaleli okusingqongileyo kunye nentlalo-ntle yayo.
Umzekelo, oko kubizwa ngokuba ziiBlue Tears kuvela kwiilwandle zaseTaiwan. Ezi nyembezi ziluhlaza okwesibhakabhaka, ngokweengxelo ezahlukeneyo ezaqokelelwa kwindawo yaseMatsu Islands, into eziyibangela kukukhanya okuluhlaza okwesibhakabhaka ehlotyeni. Kwakhona kungenxa yokubonakala kweentyatyambo ezahlukeneyo, oko kukuthi, izidalwa eziphilayo ezahlukeneyo ezithi kule meko ziyi-bioluminescent kwaye zibizwa ngokuba zii-dinoflagellates. Konke oku kutsala amanani aphezulu abakhenkethi, esiqinisekisa ukuba awazi ukuba ukukhanya okuluhlaza okwesibhakabhaka akunanto ilungileyo, kuba kunjalo Inetyhefu kakhulu kwaye minyaka le iyanda kwezi ndawo zaseTaiwan.