Science

At present, loss of specific species, groups of species (extinction) or decrease in number of particular organisms (endangerment) are taking place in different parts of the world at a rapid pace. These losses are often manifestations of degradation or destruction in the ecosystem or habitat. DNA Banks More plant conservationists are turning to DNA technologies … Read more

A concern about what affect genetically modified material could have on human health. For example, transgenic crops have been suggested to cause allergies in some people, although it is uncertain whether transgenic crops are the source of this reaction. Furthermore the antibiotic resistance genes placed in these crops has been suggested to cause resistance to … Read more

ATGM NAG has been developed by DRDO to engage highly fortified enemy tanks in day and night conditions. The missile has “Fire & Forget” “Top Attack” capabilities with passive homing guidance to defeat all MBTs equipped with composite and reactive armour. The NAG missile carrier NAMICA is a BMP II based system with amphibious capability. … Read more

Navigation satellite is a system which provides system of artificial satellite that helps in providing autonomous geospatial positioning. It helps to provide positioning information regarding local time to high precision. Global positioning system launched(GPS) by NASA is an example of it. India Launched Indian regional navigation satellite system called IRNSS. It is a constellation of … Read more

Light fidelity(Li-Fi) is a revolutionary new technology that transmit high speed data using lights. It is perceived to be 100 times faster than Wifi technology which is based on radio wave communication. Potential application: Mobile connectivity: Increase in the mobile connectivity. Laptops, smart phones, tablets and other mobile devices can interconnect directly using Li-Fi. Short … Read more

DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. A DNA sample taken from a crime scene is compared with a DNA sample from a suspect. If the two DNA profiles are a match, then the evidence came from that suspect. Conversely, if … Read more

INTEGRATED MISSILE DEVELOPMENT PROGRAMME:   Missile Type Remark Prithvi Short range Surface to Surface ballistic missile – The Prithvi missile is a family of tactical surface-to-surface short-range ballistic missiles (SRBM) and is India’s first indigenously developed ballistic missile. Development of the Prithvi began in 1983, and it was first test-fired on 25 February 1988 from Sriharikota, … Read more

  (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

. Today, satellites are launched into orbit by multi-staged satellite launch vehicles that can be used only once (expendable). These launch vehicles carry oxidiser along with the fuel for combustion to produce thrust. Launch vehicles designed for one time use are expensive and their efficiency is low because they can carry only 2-4% of their … Read more

The VAIBHAV Summit is a global virtual summit of overseas and resident Indian Researchers and Academicians The aim of the summit is to bring Indian origin luminaries in academic institutes and R&D organizations across the world and resident counterparts on a single platform to debate upon collaboration mechanisms to strengthen academic and S&T base in … Read more