Science Tech

 Post harvest technology and value addition in Food Processing While increased productivity is an essential component of a vibrant agricultural sector, improved post-harvest handling and processing is essential to ensure high-quality products reach the markets. Too often, even when the yields are high, producers lose income due to poor post-harvest practices. Effective post-harvest … Read more

 Synthetic fibers (nylon and rayon),, polystyrene Synthetic fibers are made from raw materials such as petroleum, based on chemicals or petrochemicals. These materials are polymerized into a long, linear chemical with different chemical compounds and are used to produce various types of fibers. Synthetic fibers account for about half of all fiber usage, … Read more

 Nuclear reactors A nuclear reactor, formerly known as an atomic pile, is a device used to initiate and control a self-sustained nuclear chain reaction. Nuclear reactors are used at nuclear power plants for electricity generation and in propulsion of ships. Heat from nuclear fission is passed to a working fluid (water or gas), … Read more

 Control and coordination:Plants and animals All the living organisms respond and react to changes in the environment around them. The changes in the environment to which the organisms respond and react are called stimuli such as light, heat, cold, sound, smell, touch etc. Coordination in plants Coordination refers to ordered working of different … Read more

 Transport of water and minerals in plants and animals   Transport of water in plants The survival of plants is dependent on a number of factors which include water, minerals, gases, and nutrients they receive. The movement of gas, water, and nutrients in plants are carried out in components. They take in carbon … Read more

 Some Important Organic Compounds   The chemical compounds of living things are known as organic compounds because of their association with organisms and because they are carbon-containing compounds. Organic compounds, which are the compounds associated with life processes, are the subject matter of organic chemistry. Among the numerous types of organic compounds, four major categories … Read more

 Properties and applications of petroleum products Gases Gaseous refinery products include hydrogen, fuel gas, ethane, propane, and butane. Most of the hydrogen is consumed in refinery desulfurization facilities, which remove hydrogen sulfide from the gas stream and then separate that compound into elemental hydrogen and sulfur; small quantities of the hydrogen may be … Read more

8 Aviation Almost all modern aircraft are fitted with multiple GPS receivers. This provides pilots and sometimes passengers with a real-time aircraft position and map of each flight’s progress. GPS also allows airline operators to pre-select the safest, fastest and most fuel-efficient routes to each destination, and ensure that each route is followed as closely … Read more

 Civilian and military uses of Nuclear energy Civilian uses Plant mutation breeding Plant mutation breeding is the process of exposing the seeds or cuttings of a given plant to radiation, such as gamma rays, to cause mutations. The irradiated material is then cultivated to generate a plantlet. Plantlets are selected and multiplied if … Read more

 Methods of preparing magnets Some magnets can be created using any of the following ways below.   Induction   Stroking   Using electricity   Since these magnets can be made, they are usually referred to as temporary magnets. Electromagnets are magnets made using electricity and so are called temporary magnet since they only … Read more