Science Tech

 Electric discharge in gases Electrical discharge through gases is studied by using a specially designed glass tube commonly called as a discharge tube. It consists of a cylindrical glass tube having a side tube, and two metallic electrodes one at each end. These electrodes can be connected to the respective terminals of a … Read more

 Dry cell A dry cell is an electrochemical cell that uses a low-moisture electrolyte instead of a liquid electrolyte as a wet cell does. This feature makes the dry cell much less prone to leaking and is therefore more suitable for portable applications. The zinc-carbon battery is one of the most common examples … Read more

 Quick Revision ( SCIENCE SERIES, Art 2):   NUCLEAR TECHNOLOGY, RADIOACTIVITY and Its application     Nuclear technology: Nuclear technology is technology that involves the nuclear reaction of atomic nuclei. Among the notable nuclear technologies are nuclear reactors, nuclear medicine and nuclear weapons.   BASIC CONCEPTS: Nuclear energy: The energy produced due to changes … Read more

 Fuels are any material that store potential energy in forms, which upon burning in oxygen liberates heat energy. Calorific value of fuel is the total quantity of heat liberated when a unit mass or volume of fuel is completely burnt. Higher or gross calorific value (HCV) in the total amount of heat produced … Read more

 Food safety and Microbial standards, Food quality standards Food safety-Indicators of food microbial Quality and safety-Coliforms, Enterococci, Bifidobacteria, Coliphages/Enteroviruses, predictive Microbiology/ Microbial modeling Microbial Standards of Processed and preserved Foods The Center for disease control (CDC) investigates each documented outbreak of food borne disease and attempts to determine not only the specific microorganisms … Read more

 Distribution of Mulberry and Non-mulberry Sericulture (area, production and productivity across states), Cocoon Production Sericulture which has its origin in China is an age old industry in India. Silk route is one of the ancient internationally recognized route for global business for not only silk but also other important commodities. History reveals that … Read more

   Blood: Composition and Function   Blood has many functions including transportation of nutrients round the body, maintaining homeostasis and the immune system. It is made up of plasma, red blood cells, white blood cells and platelets.     Function of blood   Transportation: The blood carries other substances … Read more

 Yoga Philosophy (Yog Darshan), Astang Yoga Yoga An AYUSH system of medicine includes Indian systems of medicine and Homeopathy. AYUSH is an acronym for Ayurveda, Yoga & Naturopathy, Unani, Siddha & Sowa Rigpa, and Homoeopathy. Yoga is essentially spiritual and it is an art and science of healthy living which focuses on bringing … Read more

 Water Resources Management Water Resources in India India accounts for about 2.45 per cent of world’s surface area, 4 per cent of the world’s water resources and about 16 per cent of world’s population. The total water available from precipitation in the country in a year is about 4,000 cubic km. The availability … Read more

 Waste Water Management Water, food and energy securities are emerging as increasingly important and vital issues for India and the world. Most of the river basins in India and elsewhere are closing or closed and experiencing moderate to severe water shortages, brought on by the simultaneous effects of agricultural growth, industrialization and urbanization. … Read more