Aswan Low Dam was summoned to Egypt by the Fatimid Caliph, Al-Hakim bi-Amr Allah, to regulate the flooding of the Nile, a task requiring an early attempt at an Aswan Dam. After his field work convinced him of the impracticality of this scheme, and fearing the Caliph's anger, he feigned madness. He was kept under house arrest from 1011 until al-Hakim's death in 1021, during which time he wrote his influential "Book of Optics". Following their 1882 invasion and occupation of Egypt, the British began construction of the first dam across the Nile in 1898. Construction lasted until 1902, and it was opened
Pangani Falls Dam Pangani Falls Dam Pangani Falls Dam is a dam in Tanzania, which is part of the Pangani Hydro Systems. The dam is located at Koani in the Muheza District of the Tanga Region, about 8 km south of another power station at Hale. The Pangani falls power station has two turbines and has an installed capacity of . Construction of the dam began in December 1991 and was commissioned quickly just 3 years later to aid the ailing power shortages in the country. The entire project was funded by European Scandinavian nations (Norway, Finland and Sweden), which jointly decided to