Umlando wokuvikela umbani usukela ngawo-1700, kodwa kube nokuthuthuka okuncane kwezobuchwepheshe. I-Preventor 2005 yanikeza ubuhlakani bokuqala obukhulu embonini yokuvikela umbani selokhu yaqala ngawo-1700. Eqinisweni, ngisho nanamuhla, imikhiqizo evamile enikezwayo ivame ukuba yizinduku zombani ezincane zendabuko ezixhunywe nenqwaba yezintambo eziveziwe - ubuchwepheshe obusukela ngawo-1800.

1749 - Induku kaFranklin.Ukutholakala kwendlela ukuhamba kwamandla kagesi kusikhumbuza isithombe sikaBenjamin Franklin emi esiphephweni semvula ephethe uhlangothi olulodwa lwekhayithi futhi elinde umbani ukuba ushaye. Ngenxa “yokuzama kwakhe ukuthola umbani emafwini ngenduku ecijile,” uFranklin wenziwa ilungu elisemthethweni leRoyal Society ngo-1753.Iminyaka eminingi, konke ukuvikela umbani kwakune-Franklin Rod eyenzelwe ukuheha umbani nokuwuhlasela. Yayisebenza kahle kakhulu futhi namuhla ibhekwa njengeyasendulo. Manje le ndlela ngokuvamile ibhekwa njengeyanelisayo kuphela ezinsikeni zesonto, oshimula abade bezimboni kanye nemibhoshongo lapho izindawo okufanele zivikelwe zitholakala khona ngaphakathi kwekhoni.

1836 - Uhlelo Lwezinsika ZaseFaraday.Ukuvuselelwa kokuqala kwenduku yombani kwakuyikheji laseFaraday. Lokhu empeleni kuyindawo ebiyelwe eyakhiwe nge-mesh yezinto zokuhambisa ophahleni lwesakhiwo. Iqanjwe ngososayensi waseNgilandi uMichael Faraday, owayisungula ngo-1836, le ndlela ayanelisi ngokuphelele ngoba ishiya izindawo eziphakathi kophahla phakathi kwabaqhubi zingavikelekile, ngaphandle kokuthi zivikelwe yiziteshi zomoya noma abaqhubi bophahla emazingeni aphezulu.

• Ngohlelo lwe-Faraday, ukuvikelwa kombani kwakhiwe yizinduku eziningi zombani, okungenani ubude obuyifidi elilodwa, ezinamathele kuzo zonke izindawo ezivelele ophahleni. Kumelwe zihlanganiswe ndawonye nezikhonkwane zophahla kanye nezikhonkwane eziningi eziphansi ukuze kwakhiwe ikheji elingengaphezu kwamamitha angu-50 x 150 futhi libe nezindawo zomoya ezimpambanweni zezindawo zophahla oluphakathi.
  Isakhiwo esimelelwe lapha singamamitha angu-150 x 150 ft. x 100 ft. ukuphakama. Indlela ye-Faraday iyabiza kakhulu ukuyifaka, idinga imishini eminingi ophahleni kanye nokungena ophahleni okuningi...kodwa kuze kube maphakathi nawo-1900, kwakungekho lutho olungcono.

• 1953 - Umvimbeli.I-Preventor iyisiteshi somoya esifaka i-ionizing esisebenza ngokuguquguqukayo. U-JB Szillard waqala ukuzama izibani ezifaka i-ionizing eFrance, kwathi ngo-1931, uGustav Capart waqamba ithuluzi elinjalo. Ngo-1953, indodana kaGustav u-Alphonse yathuthukisa ithuluzi likayise eliguqulayo, futhi ukusungula kwakhe kwaphumela kulokho esikwaziyo namuhla ngokuthi i-Preventor.
  I-Preventor ka-2005 yaqedwa kamuva yi-Heary Brothers yaseSpringville, eNew York.
  Izithibelo zisebenza ngokuguquguqukayo, kanti izindlela zangaphambili azishintshi. Isibonelo, lapho ifu lesiphepho lisondela esakhiweni esivikelwe, insimu ye-ion kagesi phakathi kwefu nomhlaba iyandiswa. Ama-ion ageleza njalo esuka kuyunithi, athwala amanye ama-ion omhlaba aya efwini, futhi lokhu kunomphumela wokwehlisa okwesikhashana amandla ensimu ye-ion phakathi kwefu nomhlaba. Kumelwe kuqondwe ngokucacile ukuthi ayikwazi ukuthulisa ifu. Ayenzi lutho ngaphandle kokunciphisa ukucindezeleka isikhathi esincane lapho ifu lidlula khona phezulu - kodwa lokhu kwehlisa okwesikhashana ukucindezeleka ngezinye izikhathi kwanele ukuvimbela ukukhishwa kombani ukuthi kuqhume. Ngakolunye uhlangothi, lapho lokhu kwehla kokucindezeleka kunganele ukuvimbela ukuqhuma, kunikezwa i-streamer ye-ion eqhuba ukukhishwa ngokuphephile ohlelweni lomhlaba/lomhlaba.
  I-Heary Brothers ibilokhu isebenza kusukela ngo-1895 futhi ingumkhiqizi omkhulu nomdala kunabo bonke wemishini yokuvikela umbani emhlabeni. Abakhiqizi nje kuphela i-Preventor, kodwa futhi baqinisekisa ukusebenza kwayo. Lesi siqinisekiso sisekelwa yi-inqubomgomo yomshuwalense womkhiqizo wezigidi eziyishumi zamaRandi.

* Imodeli ye-Preventor ka-2005.