Science Tech

Work power and energy Work Work is a measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement. If the force is constant, work may be computed by multiplying the length of the path … 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

 Medicinal and aromatic plants Medicinal and aromatic plants constitute a major segment of the flora, which provides raw materials for use in the pharmaceuticals, cosmetics, and drug industries. The indigenous systems of medicines, developed in India for centuries, make use of many medicinal herbs. These systems include Ayurveda, Siddha, Unani, and many other … Read more

 Crop Science in India In India around 70% of the population earns its livelihood from agriculture. It fulfills the basic need of human beings and animals. It is an important source of raw material for many agro based industries. India’s geographical condition is unique for agriculture because it provides many favorable conditions. There … Read more

Health awareness Programme Health Awareness Campaigns are one of the most functional elements in health system that push people to create that big change to eradicate or lessen the unhealthy impact the health issue. Healthcare Awareness Campaigns are meat to trigger that action of change, promise a healthier society with long standing impact in the … Read more

 Surface tension Surface tension, property of a liquid surface displayed by its acting as if it were a stretched elastic membrane. This phenomenon can be observed in the nearly spherical shape of small drops of liquids and of soap bubbles. Because of this property, certain insects can stand on the surface of water. … 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

  

 PSCNOTES- Science Updated Nanotechnology and its applications The concept “Nanotechnology” was first proposed by Richard Feynman on 29th December, 1959 in his talk entitled “There’s plenty of room at the bottom” at the California Institute of Technology. Deriving its name from the Greek word “dwarf” meaning small, nanotechnology is commonly defined as … Read more

 Solar Energy : Source, Solar heating devices, solar cooker solar cell   Sunlight is Earth’s most abundant energy source and is delivered free of charge. Indeed, the energy from sunlight reaching the land surface of the earth  is thousands of times greater than the world’s current total annual consumption of energy. Yet harnessing sunlight’s energy … Read more