Science

. Established in April 1987, the voluntary Missile Technology Control Regime (MTCR) aims to limit the spread of ballistic missiles and other unmanned delivery systems that could be used for chemical, biological, and nuclear attacks. The regime urges its 35 members, which include most of the world’s key missile manufacturers, to restrict their exports of … Read more

INS Viraat is the longest serving warship in the world. It hold the Guinness Books of record  INS Viraat was first commissioned into the British Royal Navy as the HMS Hermes on November 18, 1959, 15 years after she was laid down in June, 1944.  She served as the flagship of the Royal Navy’s task … Read more

QUICK REVISION   TOPIC: CATALYST Definition:       Increases or decreases the rate of reaction without actually taking part in the reaction.   Types:      On the basis of phase of reactants: Same phase : Homogenous catalyst; eg: In Hydrogenation use of Raney nickel catalyst   Different phase : Heterogenous catalyst; Eg in Ozone depletion Chlorofluorocarbons (CFCs) like … Read more

Contribution of Indian  Scientist:   Scientist Achievement Homi Jehangir Baba Father of Indian Nuclear Programme, Carried out first nuclear test 1974, Atomic energy establishment was renamed Bhabha Atomic research centre. Venkatraman Ramakrishna Indian origin biologist cum scientist won nobel prize in 2009 in chemistry. He pioneered in the studies of the structure and function of … Read more

:  The distribution of atmospheric pressure across the latitudes is termed global horizontal distribution of pressure. Its main feature is its zonal character known as pressure belts.   On the earth’s surface, there are seven pressure belts. They are the Equatorial Low, the two Subtropical highs, the two Subpolar lows, and the two Polar highs. … Read more

Certain basic nutrients are required to maintain good health. The energy yielding nutrients are proteins, carbohydrates and fats. Dietary fibbers, vitamins and minerals such as calcium, iron, chloride, magnesium, phosphorus, potassium and sodium are other essential supplements. Apart from these, certain micronutrients such as chromium, copper, fluoride, iodine, manganese, molybdenum, selenium, sulpur, zinc and so … Read more

Conventional breeding, especially of crops, livestock and fish, focuses principally on increased productivity, increased resistance to diseases and pests, and enhanced quality with respect to nutrition and food processing. Advances in cellular genetics and cell biology methods in the 1960s contributed to the so-called ‘green revolution’ that significantly increased varieties of staple food crops containing … Read more

Stem cells are special human cells that have the ability to develop into many different cell types, from muscle cells to brain cells. In some cases, they also have the ability to repair damaged tissues.               Stem cells differ from other kinds of cells in the body. Self-renewal: They can divide and renew themselves for … Read more

At present, loss of specific species, groups of species (extinction) or decrease in number of particular organisms (endangerment) are taking place in different parts of the world at a rapid pace. These losses are often manifestations of degradation or destruction in the ecosystem or habitat. DNA Banks More plant conservationists are turning to DNA technologies … Read more

The vision of the programme  is centred on three key areas Digital infrastructure as Utility to Every Citizen Governance and services on demand Digital empowerment of citizens Digital Infrastructure as Utility to Every Citizen Availability of high speed internet as a core utility for delivery of services to citizens. Cradle to grave digital identity that … Read more