Science

India’s Polar Satellite Launch Vehicle (PSLV-C45)  successfully launched EMISAT and 28 international customer satellites from Satish Dhawan Space Centre (SDSC) SHAR in Sriharikota. This flight marked the first mission of PSLV-QL, a new variant of PSLV with four strap-on motors. EMISAT is a satellite built around ISRO’s Mini Satellite-2 bus weighing about 436 kg. The … Read more

  Mapping of lunar surface: Extensive mapping of lunar surface to study variation in lunar surface compositions is essential to trace back the origin and evolution of moon. Soft landing: The project will attempt to soft land the lader -vikram abd rover Oragyan in a high plain between two craters. Quest for water: Evidence for … Read more

Dry cell batteries create electrical energy by converting chemical energy into electricity. The exact means of doing so depends on the type of dry cell battery in question, but the materials that are used are generally zinc and carbon or zinc and manganese dioxide. These materials are placed within the electrolyte paste within the battery. … Read more

Delhi has become a smoke chamber in the recent past especially in winters. The changes in temperature  and slowing wind traps soot, dust fine and particulate matter. The reasons for air pollution are as follows: Burning of agricultural residue in Punjab and harayana. Farm stubble burning. This reason got aggravated because of the use of … Read more

Reflex action is an immediate involuntary response to a stimulus. In an involuntary response, a sensory impulse on reaching central nervous system is itself returned to a specific effector as a motor impulse without neuronal analysis and integration. Reflex responses occur below the level of consciousness. Reflex actions are sudden and autonomic. For instance, if … Read more

Project Beehive was launched by the Army’s Corps of Electronics and Mechanical Engineers(EME) on September 1,2019. The project seeks to achieve greater automation of the Corps and connect all its workshops to an integrated smart network with real-time data analytics capabilities.The centralised network would allow Indian army to access data about any equipment across the … Read more

Microdots are a globally proven technology to ensure originality in spare parts of machines and components, including in the automobile sector. The microdot technology involves spraying thousands of microscopic dots onto vehicles or other assets to form a unique identification. Each microdot carries this identification which is registered to the owner, but is not visible … Read more

Surrogacy is a practise in which surrogate mother agrees to carry and give birth to child for intended couples. Surrogacy, also known as womb for rent.Surrogate mother is a woman who bears a child for another couple, inspires hope in them and changes their life forever i.e. An Angel.Intended couple are the ones who cannot … Read more

Properties of paints  Exterior paint is exposed to all types of varying weather conditions. Exterior paint is therefore required to provide protection against UV radiation of the sun as well as fungal growth.  It’s made to combat mildew as well as fading. In addition, they have to be fade resistant as they face … Read more