IPentagon ingenye yezakhiwo ezidume kakhulu emhlabeni. Kodwa-ke, akuwona wonke umuntu owaziyo ukuthi yimuphi umsebenzi owenziwa kuyo, nokuthi yakhelwe yiphi injongo. Kwabanye, leli gama lihlotshaniswa nento embi, kanti kwabanye livusa imizwa emihle.
Kulesi sihloko, sizokhuluma ngokuthi yini i-pentagon, singakhohlwa ukusho imisebenzi yayo nendawo.
Amaqiniso athakazelisayo ngePentagon
IPentagon (IsiGreki πεντάγωνον - "i-pentagon") - ikomkhulu loMnyango Wezokuvikela wase-US esakhiweni esimise okwe-pentagon. Ngakho-ke, isakhiwo sathola igama laso ekubunjweni kwaso.
Iqiniso elithandekayo ukuthi iPentagon isendaweni ye-14th ekuklelisweni kwezakhiwo ezinkulu kakhulu, ngokwendawo yezakhiwo, emhlabeni. Yakhiwa ngesikhathi seMpi Yezwe II - kusuka ngo-1941 kuya ku-1943. IPentagon inezilinganiso ezilandelayo:
- ipherimitha - cishe. 1405 m;
- ubude bezinhlangothi zonke ezi-5 bungu-281 m;
- ubude bamaphaseji angama-28 km;
- indawo ephelele yezitezi ezi-5 - 604,000 m².
Kuyamangaza ukuthi iPentagon iqashe cishe abantu abangama-26,000! Lesi sakhiwo sinezitezi ezi-5 ngaphezulu nangaphansi komhlaba ezi-2. Kodwa-ke, kunezinguqulo ngokusho ukuthi kunamaphansi ayi-10 ngaphansi komhlaba, ngaphandle kwemigudu eminingi.
Kuyaphawuleka ukuthi kuzo zonke izitezi zePentagon kukhona ama-5-gons ama-5, noma "amasongo", namaphaseji ayi-11 okuxhumana. Ngenxa yomsebenzi onjalo, noma iyiphi indawo ekude lapho kwakhiwa khona ingafinyelelwa ngemizuzu engu-7 nje.
Ngesikhathi kwakhiwa iPentagon ngo-1942, kwakhiwa izindlu zangasese ezihlukene zabasebenzi abamhlophe nabamnyama, ngakho-ke inani eliphelele lamathoyilethi leqa okujwayelekile ngezikhathi ezi-2. Kwabelwe u- $ 31 million wokwakha indlunkulu, okusho ukuthi namhlanje angama- $ 416 million.
Ukuhlasela kwamaphekula ngomhlaka 11 Septhemba 2001
Ekuseni ngoSepthemba 11, 2001, iPentagon yahlaselwa amaphekula - indiza yabagibeli iBoeing 757-200 yashayisa uphiko lwesobunxele lwePentagon, lapho kwakukhona khona ubuholi bemikhumbi yaseMelika.
Le ndawo ilinyazwe ukuqhuma nokuholele emlilweni, okuholele ekutheni ingxenye yento ethile iwe.
Iqembu lamabhomu okuzibulala lathumba iBoeing layithumela ePentagon. Ngenxa yalokhu kuhlasela kwamaphekula, kwabulawa abasebenzi abangu-125 nabagibeli abangu-64 bendiza. Iqiniso elithandekayo ukuthi indiza igijimise isakhiwo ngejubane lama-900 km / h, icekela phansi futhi ilimaze izisekelo zokhonkolo ezingama-50!
Namuhla, kuphiko olwakhiwe kabusha, iSikhumbuzo sePentagon savulwa ukukhumbula izisulu zabasebenzi nabagibeli. Isikhumbuzo yipaki enamabhentshi ayi-184.
Kuyaphawuleka ukuthi amaphekula amane ahlaselwa amaphekula ngoSepthemba 11, 2001, lapho kwafa abantu abangu-2 977.
