Kugadziridza kwekutanga

Muna 1885 iyo Olmsted-yakagadzirwa New York State Reservation kuNiagara yakaitwa nyika yekutanga paki, uye nekukasira ikava nzvimbo yakakurumbira yevashanyi nevanoenda kumuchato kuti vatarise kubwinya kwemusango kweAmerican Falls uye Horseshoe Falls hombe mhiri kwemuganhu muCanada. Asi pakanga paine chinetso: Mapopoma eNiagara akanga ari kurasikirwa nemabhanan’ana. Kukura kwesimba remvura "nhangemutange yezvombo" pakati penyika mbiri dziri kumusoro kwaireva mvura shoma pane yaimboyerera pamapopoma kumativi ese.

Mushure mekunge Canada neUS vasaina chibvumirano cheNiagara River Diversion muna 1950, vakakurukura zvirongwa zvakawanda-kusanganisira kushandura Niagara kuita "mapopoma emvura" aingomhanya nemusi weSvondo - vasati vabvumirana kutsausa isingapfuure hafu yerwizi rweNiagara 200,000 cubic feet. -per-second natural flow for hydropower munguva dzemasikati panguva yakatarwa yevashanyi mwaka.Realistic Sex Dolls

"Izvi zvinoreva kuti kana waizoenda kuNiagara Falls panguva yeKisimusi, kana chero nguva muchando, chauri kuona chikamu chimwe muzvina chemvura iri pamusoro pemapopoma," Macfarlane anoudza.National Geographic. "Imwe chikamu chetatu chiri kutenderera [mapopoma] mumatanho ekutsauka." Elden Ring Melina Dhora Dzebonde.

Chibvumirano cha1950 chakarongawo hurongwa hwekuvharidzira kukosha kwehydropower paRwizi rweNiagara nemapopoma ayo ane mukurumbira. Mainjiniya ekuCanada akatsaudzira rwizi muzvikamu zviduku, achiputika nekuveza kumucheto kweHorseshoe Falls, achiidzika nemazana emafiti kuti agadzire mutsetse usina kutsemuka wakafukidzwa neketeni rakatetepa, rakafanana remvura kuti ripe kutaridzika kwehukuru. Yakagadzirwa-yakagadzirwa "telecolorimeter" yakabatsira mainjiniya kuona kuti kudonha kudivi reCanada kwakaramba kuri mumvuri wegirinhi bhuruu. Kuvezazve mativi eHorsehoe Fall kwakaderedza mhute, changa chiri chichemo chevashanyi.

Vanochengetedza veAmerica vakagumbuka nekupindira kwegeological, asi mainjiniya akapokana nekutaura kuti Mapopoma eNiagara anongosakadza tsoka dzakati wandei pagore—nzvimbo yairipo inosvika mamaira masere kumusoro kwerwizi kubva pakatanga mvura kubva paNiagara Escarpment makore 12 000 apfuura.

“Asi kana uine mvura shoma zvikuru inoenda pamusoro payo, mapopoma acho haagoni kukukurwa nokukurumidza,” Macfarlane anotsanangura kudaro. Ndeipi nzira iri nani yekuchengetedza mapopoma eNiagara, mainjiniya akapokana, pane kungonotsa kuyerera kwemvura pamapopoma?