Cloud Seeding Vincent Schaefer an American chemist and meteorologist discovered the principle of cloud seeding in 1946. It is a type of weather modification technique that improves the ability of clouds to produce rain or snow by introducing tiny ice nuclei into certain types of subfreezing clouds. These nuclei provide Read more…
Koeppens’s Scheme of Classification of Climate: The empirical climate classification scheme was developed by Koeppen in 1918. Koeppen’s scheme is the most widely used classification of climate. Koeppen identified a close relationship between the distribution of vegetation and climate. Koeppen selected certain values of temperature and precipitation and related them to Read more…
The Origin and Evolution of Earth When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Earth has a central core, a rocky mantle, and a solid crust. Read more…
World Happiness Report 2023 The World Happiness Report is released annually around March 20th as part of the International Day of Happiness celebration. Top Ranked Country: The European Nation Finland is the world’s happiest country for the sixth year in a row, according to World Happiness Report ranking based largely Read more…
Carbon Sink Carbon sink is a natural or artificial reservoir that absorbs and stores Carbon dioxide from the atmosphere. Why in the news? India has committed in its NDC – to create an additional carbon sink of 2.5 to 3 billion tonnes of CO2 equivalent through additional forest and tree Read more…
World Wildlife Day World Wildlife Day is celebrated on 3rd March. It is a United Nations international day to celebrate all the world’s wild animals and plants and the contributions that they make to our lives and the health of the planet. The theme of World Wildlife Day 2023 The Read more…
Solar Radiation, Heat Balance, and Temperature Solar Radiation Our earth receives almost all its energy from the sun in short wavelengths that are radiated back to space by the earth. As a result, the earth neither warms up nor does it get cooled over a period of time. The amount of Read more…
The Age of Satavahanas The Age of Satavahanas: According to most modern scholars the age of the Satavahana began in the late second century BCE and lasted until the early third century CE. In the Deccan and in central India, the Satavahanas succeeded the Mauryas although after a gap of Read more…
Post-Mauryan India and Central Asian Contacts Post-Mauryan India – time period (200 B.C. to 300 AD) The successors of Asoka were not able to keep the vast Empire intact, after the death of Asoka. The provinces started declaring themselves independent. Kalinga declared itself independent, and further Satavahanas established their independent Read more…