Quick Revision ( Science Series, Art 2): Nuclear Technology, Radioactivity And Its Application

Quick Revision ( Science Series, Art 2):   Nuclear Technology, Radioactivity And Its Application     Nuclear technology:        Nuclear technology is technology that involves the nuclear reaction of atomic nuclei. Among the notable nuclear technologies are Nuclear Reactors, nuclear medicine and nuclear weapons.   BASIC CONCEPTS: Nuclear Energy: The energy produced due to changes in the … Read more

Solar system, relative position of Earth with respect to Sun and other planets, movement of earth and moon in solar system, lunar and solar eclipses

The Solar System consists of the Sun and its eight main planets, their satellites, asteroids, comets, meteors and other dwarf planets. The Sun is at the one of the two “centers” of The Solar System and the planets revolving around it in elliptical orbits. The sun is in the centre of the solar system. It … Read more

Blood Groups

 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

Introduction And Application Of Genetic Engineering

 Introduction and application of Genetic engineering Genetic engineering Genetic engineering, the artificial manipulation, modification, and recombination of DNA or other nucleic acid Molecules in order to modify an organism or Population of organisms. The term genetic engineering initially referred to various techniques used for the modification or manipulation of organisms through the processes … Read more

Give an account of following: a) Male and female reproductive organs b) Asexual production c) Binary fission d) Fertilisation

  (a)Male and Female reproductive organ:    The male reproductive organs include a pair of testes (singular, testis), two sperm ducts and a penis. The testes produce the male gametes called sperms. The female reproductive organs are a pair of ovaries, oviducts (fallopian tubes) and the uterus. Ovary produces female gametes called ova (eggs).   (b)Asexual production:  It is a … Read more

The Global Positioning System (GPS)

The Global Positioning System consists of 24 satellites, that circle the globe once every 12 hours, to provide worldwide position, time and velocity information. GPS makes it possible to precisely identify locations on the earth by measuring distance from the satellites. GPS allows you to record or create locations from places on the earth and … Read more

Science and Technology in Ancient Period: Mathematics, Astronomy, Physics, Chemistry, Botany, Zoology, Physiology and Medicine (including Surgery), Ship- building, Mining and Metallurgy, Engineering and Architecture

Science And Technology In Ancient Period: Mathematics, Astronomy, Physics, Chemistry, Botany, Zoology, Physiology and Medicine (including Surgery), Ship- building, Mining and Metallurgy, Engineering and Architecture Like people in any other part of the world Indians too, have a rich legacy of scientific ideas. A desire to now the unknown, accompanied with experimentation and observation have … Read more

Green pharmacy

Green pharmacy Green pharmacy is the design of pharmaceutical products and processes that eliminate or reduce significantly the use and generation of hazardous substances and the prevention/reduction of environmental/safety and Health impacts at the source. Herbal medicine also called botanical medicine or phyto medicine. Herbalism is a traditional medicinal or folk medicine practice based on the use … Read more