Science

. 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 DMPQ- Bring out the significance of ISRO’s successful launch of scramjet technology.

The vision of the programme  is centred on three key areas Digital infrastructure as Utility to Every Citizen Governance and services on demand Digital empowerment of citizens Digital Infrastructure as Utility to Every Citizen Availability of high speed internet as a core utility for delivery of services to citizens. Cradle to grave digital identity that … Read more DMPQ- What is the vision of Digital India Mission?

Big data is the huge amount of data which is present in an unprocessed way. It is a complex data. Big data is characterised by 3 Vs ie. Volume of data, velocity of data i.e. processed and complex variety of data. Big data has various useful application. The application of Big data can be seen … Read more DMPQ: Big data is always in the news recently. What do you understand by the term bio data? What are it potential application?

. Photonics is the science of light. It is the technology of generating, controlling, and detecting light waves and photons, which are particles of light. The characteristics of the waves and photons can be used to explore the universe, cure diseases, and even to solve crimes. Scientists have been studying light for hundreds of years. … Read more DMPQ-Briefly describe photonics. Also mention the need of photonics.

Quick Revision Topic:                pH scale and its day to day application   Definition:                  pH scale is the scale developed to measure the concentration of Hydrogen ion in a solution. Here ‘p’ in pH implies ‘potenz’ in german. The pH of a neutral solution is 7. for Acidic solution pH is less than 7 and … Read more Quick Revision- pH scale and its day to day application

Missile defence is a system, weapon or technology involved in detection, tracking, interception and tracking of attacking missiles. The United States, Russia, China, India, Israel and France have all developed such air defence systems.Surface-to-air missile is a missile designed to destroy aircraft or other missiles. Attempts to develop them started during World War II and … Read more DMPQ- What is S-400 system and how it is going to be beneficial For India?

When rubbers bands are twisted and untwisted, it produces a cooling effect. This is called the “elastocaloric” effect, and researchers have suggested that it can be used in a very relevant context today. The elastocaloric effect, if harnessed, may be able to do away with the need of fluid refrigerants used in fridges and air-conditioners. … Read more DMPQ- What do you understand by ELASTOCALORIC effect?