Iyini i-waterline? Izinhlobo ze-Waterline

Lesi sihloko sitshela ukuthi yimuphi umthombo wamanzi, ukuthi yini edingekayo futhi lapho umthetho ngokusetshenziswa okugunyaziwe kweyodwa yezinhlobonhlobo zawo kuqala.

Ukuthutha

Kwaphela isikhathi eside kakhulu, indlela yokuphela yokuhamba kanye nokushesha okuhambayo yahlala imikhumbi. Yiqiniso, ukusebenzisa kwabo kwakunenani lokulinganiselwa, kodwa kwakungekho ndlela elula futhi ephephile.

Ngokuhamba kwesikhathi, lapho kusetshenzwa amadivaysi okuzethemba angaphezulu noma angaphansi kwawo, abantu bangakwazi ukuhamba phakathi kwamazwekazi, okuyinto eyimpumelelo yangempela. Kancane kancane, lapho abakhi bemikhumbi bekwazi ukuthuthukisa umklamo wemikhumbi, baqala ukugunyazwa ukuvela emanzini wamanzi. Kodwa yimuphi umthombo wamanzi futhi kungani kuyadingeka? Yilokho esizobukeka kulesi sihloko.

Incazelo

Leli gama livela olimini lwesiDashi, okuyinto enengqondo ngempela. Phela, lo mbuso wawungowokuqala, owawubonakala ngezinga eliphakeme lemikhumbi yalo.

I-waterline yimizila lapho amanzi aphansi khona ahlangana nomkhumbi womkhumbi noma esinye isikebhe esintantayo. Uma sicabanga ngaleli gama ngombono wokuklama imikhumbi, khona-ke i-waterline yindawo yesigodlo ngendiza engqimba emdwebeni. Ngakho manje siyazi ukuthi umthombo wamanzi ungubani.

Izinhlobo ze-Waterline

I-waterline yilezi zinhlobo ezilandelayo:

• Ukwakha umugqa othathwa njengesizathu sokwakha umdwebo wemfundiso. Ngokusekelwe kokubala okuqala, kubonisa izinhlobo ezahlukene zokuthutha umkhumbi.
• I-waterline lineline yenzelwe ukucacisa ukukhishwa kwemikhumbi evumelekile ngenxa yokuhlanganiswa kwayo. Ngokuvamile amanzi anjalo omkhumbi ahambisana nento eyakhayo.
• Ibalwa ibonisa uhlaka, olukhomba izici eziphathelene nomkhumbi.
• Ukusebenza akusetshenzisiwe emgodini womkhumbi, umqondo okhomba izinga lamanje lamanqamulajuqu, ngokuya ngomthwalo walo noma uhlobo lwamanzi.

Uma sikhuluma ngesenzo se-waterline, sinqunywa kuye ngezici eziningi, isibonelo, ukuma kwesigxobo somkhumbi, ubuningi besakhiwo esakhiwa kuso, isisindo, amagagasi amanzi kanye nezinye.

Indawo yendawo yamanzi ingaba khona ukubala isici sokuphelela se-enclosure. Kodwa-ke, kuye ngokuthi umthwalo, isimo sezulu, ukuphakama kwamanzi nezinye izici, indawo ye-waterline ingashintsha kakhulu, futhi kanye nalo umqulu nokuzinza komkhumbi. Uma sikhuluma ngobude bayo, isebenza njengombono olinganiselwe ekunqumeni inombolo yeFroude yezitsha ezinokufuduka, ngakho-ke isivinini saso ekufundeni. Manje siyazi ukuthi i-waterline iyini.

Kodwa-ke, ngokuningiliziwe sizocubungula uhlobo olunjalo lwalo njengomkhiqizo wezimpahla.

Isitembu samathenda

Ngo-1890, uphawu olufanayo lwaba yinto edingekayo kuyo yonke imikhumbi yempahla. Ngokungafani nezinye izinhlobo ze-waterline, injongo yayo inendima eyengeziwe.

Iqiniso liwukuthi ngaphambi kokusungulwa kwamanzi anjalo, imikhumbi eminingi yomthengisi yayigubha ngenxa yokweqa ngokweqile, umehluko emanzini wamanzi ashintshiwe, kuye ngokuthi isifunda, inkathi, ubuningi bayo kanye nezinye izinto. Kwabe sekuqaliswa umthombo wamanzi wempahla. Ngosizo lwaso, umuntu ophethe ukulayisha, ubala umthwalo omkhulu ovumelekile esikebheni, uhlola umzila, izimo zezulu, uhlobo lwamanzi kanye neminye imingcele. Isibonelo samamaki anjalo singabonakala esithombeni ngezansi.

Kulula nje, umzila wokulayisha waqalwa ukuze uqaphe ukulayishwa komkhumbi, futhi uma amanzi engaphansi kwe-waterline, ngakho konke kuhambisane. Kodwa njengoba sekushiwo kakade, kuxhomeke kohlobo lwamanzi, izinkathi kanye neminye imingcele. Ngo-1890 eBrithani, umthetho wamukelwa ekusetshenzisweni okusemthethweni kweloli lori.