Notes and Study material for Exams
What is Renewable Energy? Renewable energy is energy that comes from natural sources or processes that are constantly replenished. These include sunlight, wind, rain, tides, waves, and geothermal heat. Renewable energy does not produce greenhouse gases or other pollutants, and it is becoming increasingly affordable as technology improves. Why is Renewable Energy Important? Renewable energy … Read more
Electromagnetic Wave Electromagnetic Wave are waves composed of undulating electrical fields and magnetic fields. The different kinds of Electromagnetic Waves, such as Light and radio waves, form the electromagnetic spectrum. All electromagnetic waves have the same speed in a vacuum, a speed expressed by the letter c (the speed of light) and equal to about … Read more
The process of industrial transition divided into: industrial Growth during the 19th century and industrial progress during the 20th century Industrial growth during the 19th century Decline of indigenous industries and the rise of large scale modern industries 1850-55: first Cotton mill, first jute mill and the first coal mine established. Railway also introduced. … Read more
The Impact of Climate Change: A Global Crisis Unfolding Climate change, a defining issue of our time, is no longer a distant threat but a tangible reality impacting every corner of the globe. Driven by human activities, primarily the burning of fossil fuels, this phenomenon is causing a cascade of environmental and societal disruptions, threatening … Read more
Professor Freeman J. Dyson, of Institute of Advanced Studies, Princeton, in his book “Infinite in all Directions,” had this to say about Technology: “Technology is a gift of God. After the gift of Life, it is perhaps the greatest of God’s gifts. It is the mother of civilization, of Arts and of Sciences. Technology … Read more
–2/”>a >DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> India’s relations with Russia India-Russia relationship has evolved into an equal PARTNERSHIP. The deep roots of this relationship go back to the early 20th century when India was under British rule and the Czars ruled Russia. The Russian Revolution of 1905 inspired Indian freedom fighters. Mahatma … Read more
Part 1: UDAY: Powering India’s Electricity Distribution Sector Introduction India’s electricity distribution sector has long been plagued by financial distress, characterized by mounting losses, inefficient operations, and a lack of investment. This has resulted in unreliable power supply, particularly in rural areas, and hindered the country’s economic growth. Recognizing the urgency of addressing this critical … Read more
Metallurgy Metallurgy is the process of obtaining metals from ores. It may be defined as the processes which are involved in the extraction of metals from their ores and then refining them for use are known as metallurgy. Steps of Metallurgy: Metals can be extracted from their ores by following processes: Enrichment of Ore or Concentration of … Read more
Science & TechnologyFor Notes Click on the topics [su_posts template=”templates/list-loop.php” posts_per_page=”100″ tax_term=”1321″ tax_operator=”0″ order=”desc”] Physical Science (I)System of Units: MKS, CGS and SI (II)Definition of speed,velocity, gravity, mass, weight, force, impact, work,power and energy. (III)Solar System, relative position of Earth with respect to Sun and other planets, movement of earth and moon in solar system, lunar and … Read more
Geo-political and Strategic development in west Asia and impact on india Geopolitically, West Asia is the most important region of the world. The strategic geographical location of the West Asia has made the region from ancient times the centre of world focus among nations and Empires as they tried to control over the trade route … Read more