Ngaba imibala ibalulekile?
Le yingxaki enkulu, kwaye abalobi kudala bafuna iimfihlo zayo. Abanye abalobi bacinga ukuba ukhetho lombala lubalulekile, ngelixa abanye besithi ayinamsebenzi. Ngokuthetha ngokwenzululwazi,
Kukho ubungqina bokuba zombini iimbono zinokuba zichanekile. Kukho ubungqina obulungileyo bokuba ukukhetha umbala ofanelekileyo kunokuphucula amathuba akho okutsala intlanzi xa iimeko zokusingqongileyo zichanekile, kodwa iSayensi ikwanokubonisa ukuba kwezinye iimeko, umbala ungabalulekanga kunokucinga.
Iintlanzi zingaphezulu kwe-450 yezigidi ubudala kwaye ziyizidalwa ezimangalisayo. Kwisithuba seminyaka, benze uhlengahlengiso oluninzi kwindalo esingqongileyo. Ukuhlala kwilizwe lamanzi akukho lula, ngamathuba esisingqongileyo kunye nemiceli mngeni ebalulekileyo. Umzekelo, isandi siphindwe kahlanu emanzini kunomoya, ke amanzi angcono kakhulu. I-Ocean yindawo enengxolo kakhulu. Ngokwenza umbono ophicociweyo ofanelekileyo, usebenzisa indlebe yabo yangaphakathi kunye nomgca wokuma komhlaba wokufumana ixhoba okanye uphephe iintshaba, intlanzi inokusebenzisa le nto. Amanzi anemilinganiselo eyahlukileyo esetyenziselwa intlanzi ukuchonga amanye amalungu oluntu, fumana ukutya, ukufumana izinto ezinqabileyo, ukwenza eminye imisebenzi xa iyeza ixesha lokuzalela. Intlanzi iphuhlise imeko emangalisayo yevumba elicingelwayo ukuba lizigidi ixesha elingcono kunabantu.
Nangona kunjalo, amanzi yindawo ebonakalayo ebonakalayo kunye nomceli mngeni kwintlanzi kunye nabalobi. Uninzi lweempawu zokukhanya ukukhanya kutshintsha ngokukhawuleza ngokuhamba kwamanzi kunye nobunzulu.
Unomdla wokukhanya okwenzayo?
Ukukhanya abantu kubona kuphela kwenxalenye encinci yemitha ye-electromagnetic efunyenweyo elangeni, into esiyibonayo njengesixhobo esibonakalayo.
Owona mbala ngaphakathi komfanekiso obonakalayo ugqitywe kukuKhanya okuKhanyayo:
Amagqabi amade abomvu kwaye orenji
Amaza amafutshane anoluhlaza, aluhlaza okwesibhakabhaka
Nangona kunjalo, iintlanzi ezininzi zinokubona imibala esingayenziyo, kubandakanya ukukhanya kwe-ultraviolet.
Ukukhanya kwe-Ultraviolet kuhamba phambili emanzini kunokuba uninzi lwethu luyaqonda.
Abanye abalobi bacinga:isibane sensimbi yokulobatsala intlanzi ngempumelelo
Xa ukukhanya kungena emanzini, amandla ayo ancipha ngokukhawuleza nangokutshintsha imibala. Olu tshintsho lubizwa ngokuba yi-Attinung. Uhlaselo sisiphumo seenkqubo ezimbini: ukuqalisa kunye nokuthathwa. Ukusasazeka kokukhanya kubangelwa ngamasuntswana okanye ezinye izinto ezincinci ezinqunyanyisiwe emanzini - amasuntswana amaninzi, ukwenziwa kokusasazeka ngakumbi. Ukusasazeka kokukhanya emanzini kuyafana nefuthe lomsi okanye inkungu kwimozulu. Ngenxa yegalelo lomlambo, amaziko asezantsi asemanzini ahlala anezinto ezinqunyanyisiweyo, afunxa izinto ezisezantsi, aze akhule iplanga. Ngenxa yale mali inkulu yemiba enqumlayo, ukukhanya kuhlala kungena kubunzulu abancinci. Kumanzi acocekileyo elunxwemeni, ukukhanya kwenziwe ngenzondelelo.
Ukuthathwa kokukhanya kubangelwa zizinto ezimbalwa, njengokukhanya kuguqulwa zibe bubushushu okanye zisetyenziswe ekuphenduleni kweekhemikhali ezinjengeefotosynthesis. Eyona nto ibaluleke kakhulu sisiphumo samanzi ngokwawo kwi-abling yokukhanya. Ngeendawo ezahlukeneyo zokukhanya, isixa semali esahlukileyo sahlukile; Ngamanye amagama, imibala ithathelwa ngokwahlukileyo. Amaza amade am, anjengebomvu kunye neorenji, athatyathwa ngokukhawuleza kwaye angenelele kubunzulu obukhulu kunamaza amafutshane aluhlaza okwesibhakabhaka.
Ukufunxa ukwanemida ekukhanyiseni umgama kungangena emanzini. Malunga neemitha ezintathu (malunga neemitha ezili-10), malunga neepesenti ezingama-60 zokukhanya ngokupheleleyo (ukukhanya kwelanga okanye ukukhanya kwenyanga), phantse konke ukukhanya okubomvu kuya kufakwa. Kwiimitha ezili-10 (malunga neemitha ezingama-33), malunga neepesenti ezingama-85 zokukhanya ngokupheleleyo kwaye zonke iipesenti ezibomvu, iorenji kunye nokukhanya kwe-orenji. Oku kuya kuyichaphazela kakhulu isiphumo sokuqokelela intlanzi. Kubunzulu beemitha ezintathu, ukujikajika kwe-ice ukuya kwi-grey, kwaye njengokunyuka kobunzulu, kuya kuhlala kumnyama. Njengokunyuka kobunzulu, ukukhanya oku kukukhanya kuguquke luhlaza okwesibhakabhaka kwaye ekugqibeleni mnyama njengeminye imibala.
Ukufunxa okanye ukugcwaliswa kombala nawo usebenza ngokuthe tye. Ke kwakhona, inqwelo moya ebomvu ineenyawo ezimbalwa ukusuka kwintlanzi ibonakala iyingwevu. Ngokufanayo, eminye imibala itshintsha kunye nomgama. Ngombala ukuba ubonwe, kufuneka ubethwe ngokukhanya kombala ofanayo uze ubonakalise kwicala lentlanzi. Ukuba amanzi athambise okanye aphumelelwe) umbala, loo mbala uza kubonakala njengengwevu okanye emnyama. Ngenxa yobunzulu obukhulu bokungeniswa kwe-UV Line, i-Fluoscence eyenziwa phantsi kwe-Ultraviot ye-Ultraviolet yinxalenye ebaluleke kakhulu yendawo ebaluleke kakhulu yokufumana phantsi kwendawo ephantsi komhlaba.
Ke ngoko, le mibuzo mibini ilandelayo ifanele icinge ngayo zonke iinjineli zethu:
1. Njengoko sonke sazi, sikhokelwa ngumthombo wokukhanya obandayo, akukho ultraviolet ukukhanya, kodwa indlela yokunyusa inani le-UV kwiUkukhanya kokuloba okukhokelwayo,ukuze kwandise amandla omnxeba weentlanzi?
2. Ungayisusa njani yonke i-istraviolet ye-oxtraviolet enengozi kumzimba womntu ngaphakathiIsibane se-MH, kwaye gcina i-Uva Rys ekhuthaza amandla eentlanzi?
IXESHA LOKUQALA: I-Oct-26 ukuya kwi-26233