In the 19th century, factories in cities (known as the "Big Six"[24]), Camden, Paterson, Newark, Trenton, Jersey City, and Elizabeth helped to drive the Industrial Revolution.
Biyo xireenka ayaa ceshan doona gufur iyo haraadiga qashinka biyaha taasoo keeni doonta in laga faaiidaysto biyo xireenada ku yaal suudaan sida biyo xireenda Roseires Dam, Sennar Dam, Merowe Dam iyo biyo xireenka sare ee Aswan (Aswan High Dam) ee masar. raadadka wanaagsan iyo kuwa xun ee xakamaynta fatahaadaha ayaa saamaynaya qaybta suudaan ee wabiga buluuga ah, si le'eg saamaynta uu ku leeyahay dhinaca itoobiya meesha uu wabiga buluuga ku shubo[23].