Science Tech

 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 Ideal Fuel Properties

 Respiration Respiration is defined as the movement of oxygen from the outside environment to the cells within tissues, and the transport of carbon dioxide in the opposite direction. The physiological definition of respiration is differs from the biochemical definition, which refers to cellular respiration, a metabolic process by which an organism obtains energy … Read more Respiration

 Respiratory System Introduction Red blood cells are like trucks that transport cargo on a highway system. Their cargo is oxygen, and the highways are blood vessels. Where do red blood cells pick up their cargo of oxygen? The answer is the lungs. The lungs are organs of the respiratory system. The respiratory system … Read more Respiratory System

 Usefulness of animals and human affairs As food The human population exploits a large number of animal species for food, both of domesticated livestock species in animal husbandry and, mainly at sea, by hunting wild species.  Marine fish of many species, such as herring, cod, tuna, mackerel and anchovy, are caught commercially, forming … Read more Usefulness Of Animals And Human Affairs

 Agro Food Processing: Forming village clusters and establishing Food Storage, Food Processing Industry is of enormous significance for India’s development because of the vital linkages and synergies that it promotes between the two pillars of the economy, namely Industry and Agriculture. India is world’s second largest producer of food and has the potential … Read more Agro Food Processing Forming Village Clusters And Establishing Food Storage (2)

 Relation between focal length and redius of curvature The focal length (f) of a lens is the distance between the center of the lens and the point at which the reflected light, of a beam of light travelling parallel to the center line, meets the center line (principal axis). The radius of curvature … Read more Relation Between Focal Length And Redius Of Curvatur1

 National Cyber Crime Policy Cyberspace is a complex environment consisting of interactions between people, software and services, supported by worldwide distribution of information and communication technology (ICT) devices and networks. In the light of the growth of IT sector in the country, ambitious plans for rapid social transformation & inclusive growth and India’s … Read more National Cyber Crime Policy

 Electro magnetic induction When a DC current passes through a long straight conductor a magnetising force, H and a static magnetic field, B is developed around it If the wire is then wound into a coil, the magnetic field is greatly intensified producing a static magnetic field around itself forming the shape of … Read more Electro Magnetic Induction

 Transgenic animals Transgenic animals are animals that have been cloned. The medical and biotechnological uses of animal cloning are almost innumerable, as many diseases have been eradicated thanks to the production of these transgenic animals. Transgenic animals development Since the discovery of the molecular structure of DNA by Watson and Crick in 1953, … Read more Transgenic Animals

 Steroids Steroids are naturally made by our bodies in small amounts. They help to control many functions. But steroids can also be made artificially and used as drugs to treat different diseases, including cancer.  Steroids used to treat cancer are usually a type called corticosteroids. These are man made versions of the hormones … Read more Steroids