Ocean of Knowledge
El Nino and La Nina 18 Jan 2021 13 min read El Nino and La Nina are complex weather patterns resulting from variations in ocean temperatures in the Equatorial Pacific Region. They are opposite phases of what is known as the El Nino-Southern Oscillation (ENSO) cycle. The ENSO cycle describes the fluctuations in temperature between…
Anglo-Mysore Wars 25 Jan 2021 16 min read The Anglo-Mysore Wars was a series of four military confrontations in India between the British and the rulers of Mysore. First Anglo-Mysore War (1767-69) Background In 1612, a Hindu kingdom under the Wodeyars emerged in the region of Mysore. Chikka Krishnaraja Wodeyar II ruled from 1734 to…
Tectonic Plates 01 Feb 2021 15 min read Tectonic Plates A tectonic plate (also called lithospheric plate) is a massive, irregularly-shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. The lithosphere includes the crust and top mantle with its thickness range varying between 5-100 km in oceanic parts and about 200…
Pacific Ring of Fire 08 Feb 2021 11 min read The Ring of Fire, also referred to as the Circum-Pacific Belt, is a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes. It is largely a result of Plate Tectonics where massive Pacific Plate interacts with less-dense plates surrounding it. The majority…
Glaciers 15 Feb 2021 9 min read About A glacier is a large, perennial accumulation of crystalline ice, snow, rock, sediment, and water that originates on land and moves down slope under the influence of its own weight and gravity. They are sensitive indicators of changing climate. Out of total water on Earth, 2.1% is…
Deglaciation and Threats 22 Feb 2021 8 min read Deglaciation Glaciers, ice caps and continental ice sheets cover some 10% of the earth’s land surface at the present time, whereas during the ice ages, they covered about three times this amount The present ice cover corresponds to about three-quarter of the world’s total freshwater resources….
Rock Art (Part-1) 01 Mar 2021 10 min read About Rock Arts are ancient, human-made markings/paintings/sculptures made on natural stone. Rock art consists of paintings, drawings, engravings, stencils, prints, bas-relief carvings and figures in rock shelters and caves, on boulders and platforms. India houses one of the largest, richest and most diverse repositories of rock…
Rock Art (Part-2) 09 Mar 2021 14 min read Rock Art (Part-I) Rock-Cut Architecture About: The rock-cut architecture is a type of Rock Art in which a structure is created by carving it out of solid natural rock. Cave temples and monasteries are found in many parts of India, but the largest and most famous…
Dams and Destruction 16 Mar 2021 13 min read Introduction About: A dam is a structure built across a river or stream to hold back water. Over the centuries dams have been built using different materials. Ancient dam builders used natural materials such as rocks or clay while today most dams are built using concrete….
British Conquest for Bengal: Battles of Plassey and Buxar 12 Apr 2021 13 min read Bengal in the 17th-18th Century In Mughal Period: Bengal was the most fertile and the richest province of the Mughal Empire and included present day Bangladesh and states of Bihar and Odisha. The authoritative powers of the province lay in…
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