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The tank cascade system (Sinhala: එල්ලංගාව, romanized: ellaṅgāva) is an ancient irrigation system spanning the island of Sri Lanka. It is a network of thousands of small irrigation tanks (Sinhala: වැව, romanized: wewa) draining to large reservoirs that store rainwater and surface runoff for later use. They make ...
Jetavanaramaya is the largest stupa constructed in any part of the world. It is over 120 metres (390 ft) in height and has a diameter of 367 feet (112 m). The foundation is 252 feet (77 m) deep. The deepest-known foundation of the ancient world. It needed bricks that could bear the load of 368 pounds (167 kg).
The first tank which can be identified with certainty was built by King Pandukabhaya, who reigned from 437 to 367 BC. It is said that he had three tanks built, namely Abhaya Wewa, Gamini Wewa, and Jaya Wewa. Of these, only one, Abhaya Wewa, can be identified with an extant tank, Basawakkulama Wewa.
Kala Wewa (Sinhala:කලා වැව), built by the King Datusena in 460 CE, is a reservoir complex consisting of two reservoirs, Kala Wewa and Balalu Wewa. It has the capacity to store 123 million cubic meters of water. This reservoir complex has facilitated with a stone made spillway and three main sluices. From the central major sluice, a ...
58.5 m (192 ft) Parakrama Samudra (or King Parakrama's sea or the Sea of King Parakrama) is a shallow reservoir (wewa), consisting of five separate wewa (reservoirs) (thopa, dumbutulu, erabadu, bhu, kalahagala tanks) connected by narrow channels in Polonnaruwa, Sri Lanka. The northernmost reservoir is the oldest and referred to as Topa wewa ...
An irrigation tank or tank is an artificial reservoir of any size. In countries like Sri Lanka and India they are part of historic methods of harvesting and preserving rainwater, critical in regions without perennial water resources. A tank is often an earthen bund (embankment or levee) constructed across a long slope to collect and store ...
An FDA inspection of a Tom’s of Maine manufacturing facility led to the discovery of “significant violations,” including bacteria in water used to make toothpaste and a black “mold-like ...
The Samanala Dam (Sinhala: සමනලවැව වේල්ල) is a dam primarily used for hydroelectric power generation in Sri Lanka. Commissioned in 1992, the Samanalawewa Project (Samanala Reservoir Project) is the third-largest hydroelectric scheme in the country, producing 405 GWh of energy annually. It was built with financial support ...