History of Sigiriya

Sigiriya is located in Matale District in the Central Province of Sri Lanka. It is within the cultural triangle, which includes five of the seven world heritage sites in Sri Lanka.

The Sigiriya rock is a hardened magma plug from an extinct and long-eroded volcano. It stands high above the surrounding plain, visible for miles in all directions. The rock rests on a steep mound that rises abruptly from the flat plain surrounding it. The rock itself rises 370 m (1,214 ft) above sea level and is sheer on all sides, in many places overhanging the base. It is elliptical in plan and has a flat top that slopes gradually along the long axis of the ellipse.

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Sigiriya

Sigiriya is an ancient rock fortress and palace ruin situated in the central Matale District of Sri Lanka, surrounded by the remains of an extensive network of gardens, reservoirs, and other structures. A popular tourist destination, Sigiriya is also renowned for its ancient paintings (frescos), which are reminiscent of the Ajanta Caves of India. It is one of the seven World Heritage Sites of Sri Lanka.

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History of Skype

Skype was founded in 2003 by the Swedish entrepreneur Niklas Zennström and Dane Janus Friis. The Skype software was developed by Estonian developers Ahti Heinla, Priit Kasesalu and Jaan Tallinn, the same individuals who together with Niklas and Janus were also originally behind the peer-to-peer file sharing software Kazaa. In April 2003, Skype.com and Skype.net domain names were registered. In August 2003, the first public beta version was released.

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2011 Cricket World Cup

The 2011 ICC Cricket World Cup is the tenth Cricket World Cup and is being played in Bangladesh, India, and Sri Lanka. It is Bangladesh's first time co-hosting a World Cup. All matches in the World Cup will be accorded One Day International status, with all matches being played over 50 overs. Fourteen national cricket teams will compete in the tournament, including ten full members and four associate members. The World Cup will take place between February and early April 2011, with the first match played on 19 February 2011 with co-hosts India and Bangladesh facing off at the Sher-e-Bangla National Stadium in Mirpur, Dhaka. The opening ceremony was held on 17 February 2011 at Bangabandhu National Stadium, Dhaka, two days before the start of the tournament, with the final on 2 April 2011 at Wankhede Stadium, Mumbai.

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HIV Virus

Human immunodeficiency virus (HIV) is a lentivirus (a member of the retrovirus family) that causes acquired immunodeficiency syndrome (AIDS), a condition in humans in which the immune system begins to fail, leading to life-threatening opportunistic infections. Infection with HIV occurs by the transfer of blood, semen, vaginal fluid, pre-ejaculate, or breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells. The four major routes of transmission are unsafe sex, contaminated needles, breast milk, and transmission from an infected mother to her baby at birth (perinatal transmission). Screening of blood products for HIV has largely eliminated transmission through blood transfusions or infected blood products in the developed world.

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Aids

Acquired immune deficiency syndrome or acquired immunodeficiency syndrome (AIDS) is a disease of the human immune system caused by the human immunodeficiency virus (HIV).This condition progressively reduces the effectiveness of the immune system and leaves individuals susceptible to opportunistic infections and tumors. HIV is transmitted through direct contact of a mucous membrane or the bloodstream with a bodily fluid containing HIV, such as blood, semen, vaginal fluid, preseminal fluid, and breast milk.This transmission can involve anal, vaginal or oral sex, blood transfusion, contaminated hypodermic needles, exchange between mother and baby during pregnancy, childbirth, breastfeeding or other exposure to one of the above bodily fluids.

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The Nobel Day

December 10 

 

  

On the Nobel Day the Nobel Prizes are delivered to the Prize Winners of the year. The prizes are for a Scientific Exploration of great value for mankind in the areas of Physics, Chemistry, Medicine, Literature, Economics and Peace.

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