Total Internal Reflection

 Total internal reflection Total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle. In general, total … Read more Total Internal Reflection

Fertilizars

 Fertilizers All plants need certain mineral nutrients to survive. These minerals occur naturally in the soil and are taken up from the soil by the roots of the plants. Most soils usually have enough of these minerals to keep plants healthy. However, some nutrients are gradually used up by the plants, or are … Read more Fertilizars

Important Organic Compounds

 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 Important Organic Compounds

Importance Of Science & Technology As An Engine For National Development Industrial Development & Urbanization (1)

 Importance of Science & Technology as an engine for national development- Industrial development & Urbanization 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 … Read more Importance Of Science & Technology As An Engine For National Development Industrial Development & Urbanization (1)

Types Of Asexual Reproduction

 Types of Asexual Reproduction Spores Some protozoans and many bacteria, plants and fungi reproduce via spores. Spores are structures naturally grown as part of an organism’s life cycle and designed for separation from the organism and dispersal via a medium such as air or water. When conditions are correct, the organism will release … Read more Types Of Asexual Reproduction

Thermal Effect Of Current It

 Thermal effect of current it’s use, calculation of power and electrical energy Spent When an electric current flows through a conductor, electrical energy is expended n over coming the frictional resistance between eh electrons and the molecules of the wire. If potential difference of V volts is applied across a conductor and current … Read more Thermal Effect Of Current It

Electro Magnetic Induction

 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

Robotics

 Robotics Robotics is a branch of engineering and science that includes electronics engineering, mechanical engineering and computer science and so on. This branch deals with the design, construction, use to control robots, sensory feedback and information processing. These are some technologies which will replace humans and human activities in coming years. These robots … Read more Robotics

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