Science Tech

 Vermiculture Vermiculture means artificial rearing or cultivation of worms (Earthworms) and the technology is the scientific process of using them for the betterment of human beings. Vermicompost is the excreta of earthworm, which is rich in humus. Earthworms eat cow dung or farm yard manure along with other farm wastes and pass it … Read more

Health Education in India Medical education in global context has evolved over a period of time and so in India. With changing community needs, educational advancements and technological revolutions, we need to update the method of imparting knowledge and skills to the students. Major components of hidden curriculum like communication skills, attitude, empathy, altruism, professionalism, … Read more

 TRENDS IN NUCLEAR POLICY, NPT AND CTBT Nuclear policy of india Important points of india’s nuclear policy are as follows: Building and maintaining a credible minimum deterrent. nuclear weapons will only be used in retaliation against a nuclear attack on Indian Territory or on Indian forces elsewhere. Nuclear retaliation to a first strike … Read more

 Molecular breeding and marker assisted selection Molecular breeding Molecular Breeding or Marker assisted breeding (MAB) is the process of using the results of DNA tests to assist in the selection of individuals to become the parents in the next generation of a genetic improvement program. The choice among various methods of MAB depends … Read more

 Ray optics Nature of light Light is a transverse, electromagnetic wave that can be seen by humans. The wave nature of light was first illustrated through experiments on diffraction and interference. Like all electromagnetic waves, light can travel through a vacuum. The transverse nature of light can be demonstrated through polarization. Light is … Read more

 Epidemic diseases Complete information on major types of epidemics in India India is endemic to many diseases such as Malaria, Kala-azar, Cholera, Tuberculosis. These erupt in epidemic form when conditions are favorable for their spread. Epidemics are disasters by themselves but these can emerge in the aftermath of other disasters as well. In … Read more

 Working principle and use of generator   Generator is a machine that converts mechanical energy into electrical energy. It works based on principle of faraday law of electromagnetic induction. The faradays law states that whenever a conductor is placed in a varying magnetic field, EMF is induced and this induced EMF is equal … Read more

 Blood groups Blood group, classification of blood based on inherited differences (polymorphisms) in antigens on the surfaces of the red blood cells (erythrocytes). Inherited differences of white blood cells (leukocytes), platelets (thrombocytes), and plasma proteins also constitute blood groups. English physician William Harvey announced his observations on the circulation of the blood in … Read more

 Variation in the population in various countries The Growth of Human Population: Four Major Periods or Stages An early period of hunters and gatherers   This period ranges between the first evolutions of humans on this planet to the beginning of agriculture. During this period, it is estimated that the total population was … Read more

 Excretory System Introduction v  If you exercise on a hot day, you are likely to lose a lot of water in sweat. Then, for the next several hours, you may notice that you do not pass urine as often as normal and that your urine is darker than usual. v  Do you know … Read more