Ikhuselo lokugqibela: nqanawa

Ngaba uye wakha wacinga ngezinto ezenzeka kwiinqanawa ezisebenzise ixesha lawo? Ukulahlwa kwabo kudala amathuna athile akelwe ngabantu. Ziyakwazi ukuba ziindawo ezomileyo apho iinqanawa eziqulethe i-asbestos kunye nezinye izinto ezinokuthi zibe nemiphumo emibi kwimvelo zigcinwe. Amangcwaba enziwe ngamanqanawa angenziwa kwilwandle, apho iinqanawa ezindala ezishiyelwe ukuba zichithwe okanye zihluthwe zibe ziqendu. Kodwa, ngokungathandabuzeki, into enomdla kakhulu akuzona ezi ndawo ezidalwe ngokuzenzekelayo, kodwa amangcwaba eenqanawa eziye zavela ngokukhawuleza.

Insidious Atlantic

Ngethuba lokufumaneka kwe-Atlantic yaba yindawo yokugqibela yezigidi zeenqanawa ezenziwe kwiimpawu ezahlukeneyo. Ngokuqhelekileyo, ukuthungela amathuna avela kumgama weendlela zokuhamba ulwandle, apho amaqhawe angamaqhawe aqalekisiwe ngamagqabha enkohliso, iisanti ezijikelezayo zingabonakaliswa kwiimephu zerwala. Ngoko, kungekude neDover kukho indawo apho uhlaziyo luhlala lushintsha utshintsho lwaso, luphethe ingozi eyona nto kubantu baselwandle namhlanje. Yintoni esinokuyithetha ngayo ngalabo bahamba ngeendlela abangazange bazi izixhobo zanamhlanje? Ephantse iDover kunomngcwaba weenqanawa ezinqanyuliweyo, apho, ngokubhaliweyo, iinqwelo "ezijikelezayo" kunye nabantu abangaphezu kwamawaka ama-50 abahlala kwiindawo ezahlukahlukeneyo zexesha eliphumayo. Ukuphonsa phansi ukuya kwi-metres ezili-15, izazinzulu zifumene ukuba yonke ingundoqo ibanjwe iindawo zokugcina iinqabana zeempahla, imithi, isinyithi. I-Goodwin's smelts inobunzima bokubola. Akusiyo nto ukuba namhlanje le ndawo eyoyikisayo ibizwa ngokuba yiNdla enkulu yeMikhumbi. Zininzi iindawo ezinjalo. Amangcwaba amathuba aseCaribbean kunye neMeditera, i- Triangle yeBermud, i- Indian Ocean, iFiji kunye namakhulu eminye indawo. Kweminye yazo, iinqwelwe, ezenziwe kwiikholeji ze-antique, ziphantsi kweenqanawa ezinqabileyo zeenqanawa zeViking, iinqanawa eziphakathi, iifriji zanamhlanje kunye neenqanawa zanamuhla eziye zanyamalala ngexesha lethu. Kutheni kukho na amangcwaba?

Kutheni?

Iimbangela zokungcwaba ngamathunjwa zingaba:

• Izibetho ezihamba ngeenqanawa zazingenakukwazi ukumelana nazo.
• Izixhobo, ukuhamba apho kungekho zixhobo ezizodwa zazingenakwenzeka.
• Iimitha ezinamandla ukuba iinqanawa zazingakwazi ukumelana nazo. Ukufihla kwi-reef, bahlala khona ngonaphakade, ukuba babengenaso ixesha lokususa ngeli xesha.

Iinqanawa ezithandwayo kakhulu

Ukongeza kwi-Greatest Ship Eater, kukho ezinye iindawo apho iinqanawa ezitshatyalaliswayo zinamakhulu eminyaka (isithombe). Amangcwaba eenqanawa eTaranto (Italy) ayaziwa kakuhle, kukho enye yeenqanawa ezili-16, ezaziqhankqalake ngakumbi ngenxa yempahla yayo. Isitya sasinenhlanhla ngemali, i-marble kunye ne-tamarisk sarcophagi. Kuyathakazelisa ukuba emva kwekhulu leminyaka imithwalo yempahla iseseburhulumenteni. Phakathi kwamangcwaba anamhlanje, kuninzi enkulu eMauritania. Emva kokuveliswa kwesizwe, iinqanawa ezininzi zokuloba kunye nezothutho zashiywa ngabanini. Bahlala bebola kufuphi nxweme. Kukho indawo e-Russia, kwi-Aral Sea. Kukho, ngenxa yentlekele yezinto eziphilayo, amakhulu amakhulu eenqanawa ziyabhujiswa phakathi kwentlango, okwakusandul Elona nqanawa elikhulu kunazo zonke ePakistan. Iinqanawa ezinkulu kunye neenqanawa zokuhamba ngeenqwelomoya apha zixutywa kwiindawo ezincinci kwaye zisetyenziswe.