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Tempered or toughened glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Tempering puts the outer surfaces into compression and the interior into tension .
Also unlike toughened glass, chemically strengthened glass may be cut after strengthening, but loses its added strength within approximately 20 mm of the cut. Similarly, when the surface of chemically strengthened glass is deeply scratched, this area loses its additional strength. Another negative of chemically strengthened glass is the added cost.
The Report of the Secretary-General's Panel of Experts on Accountability in Sri Lanka was a 2011 report produced by a panel of experts appointed by United Nations Secretary-General (UNSG) Ban Ki-moon to advise him on the issue of accountability with regard to any alleged violations of international human rights and humanitarian law during the final stages of the Sri Lankan Civil War. [1]
In 1978 Jayewardene introduced a new constitution making Sri Lanka a presidential 'Democratic Socialist' republic, with himself as executive President The Constitution of Sri Lanka: Chapter I – The People, the State and Sovereignty. In 1980 he crushed a general strike by the trade-union movement, jailing its leaders.
The history of Sri Lanka covers Sri Lanka and the history of the Indian subcontinent and its surrounding regions of South Asia, Southeast Asia and the Indian Ocean. Prehistoric Sri Lanka goes back 125,000 years and possibly even as far back as 500,000 years. [1] The earliest humans found in Sri Lanka date to Prehistoric times about 35,000 years ...
Surveyor General of Sri Lanka is the head of Department of Survey of Sri Lanka. The post was established on 2 August 1800 with the formation of the Surveyor General's Department by a proclamation of Governor Frederick North at Galle .
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Category: Historical events in Sri Lanka. 1 language. ... 2023 events in Sri Lanka by month (1 C) D. Disasters in Sri Lanka (8 C) Disestablishments in Sri Lanka (5 C) E.