Science

The progress of science in the 20th and 21st centuries exploded, creating technologies that reshaped society and extended lives. The pace of change was so great that it took society years to start asking questions about the ethics or morality of new developments. Now, humanity is at a major crossroads, where further investment in biotechnologies could change the way humans live … Read more DMPQ: What are ethical issues attached with Biotechnology? Discuss in detail.

  Ballistic Cruise Launched directly into the high layers of the earth’s atmosphere A cruise is a guided missile that can destroy a target over long distance with high accuracy. Follows parabolic path Does not follow parabolic path It depends on gravity hence called ballistic. Does not depend upon gravity Classified by coverage Classified by … Read more DMPQ: Enumerate the difference between ballistic and cruise missile.

Air breathing propulsion system: In order to provide thrust by the launch vehicles propellants are used. 70% of the constituent of propellant is oxidiser.  So air breathing propulsion system utilise the atmospheric oxygen as an oxidiser to burn the fuel. Ramjet, Scramjet and Dual Mode Ramjet (DMRJ) are the three concepts of air-breathing engines which … Read more DMPQ: Explain the Concepts of air breathing propulsion and re-usable launch vehicle? How these two technology can be game changer for our quest for space?

Chemical weapons are specialised weapons that deliver chemicals that inflict death or injury on humans through chemical actions. They are also called poor man’s bomb because they are relatively cheap and easy to produce. Example of chemical weapons are mustard gas, phosgene, chlorine and nerve agents sarin and VX.           Sarin: The UN had confirmed … Read more DMPQ: What are Chemical weapons? Give some examples.? List down the conventions against the use of chemical weapons.

The Integrated Guided Missile Development Programme (IGMDP) was conceived by renowned scientist Dr. A P J Abdul Kalam to enable India attain self-sufficiency in the field of missile technology. The following are the Key components of the Programme:   Short-range surface-to-surface ballistic missile Prithvi-The Prithvi missile is a family of tactical surface-to-surface short-range ballistic missiles … Read more DMPQ: What is Integrated Guided Missile Development programmes?

Allotrope: An element, in different forms, having different physical properties but similar chemical properties is known as allotropes of that element. Carbon has three well known allotropes which are graphite, diamond and buck minster fullerene. These are formed by carbon atoms. Following are the allotropes of carbon: Graphite:  Each carbon atom is bonded to three other carbon atoms … Read more DMPQ: What are allotropes? Discuss the allotropes of carbon with their features

The national telecom policy in work will focus on complete transition of the country from physical to digital infrastructure, with norms to push availability of high speed and uninterrupted broadband services in mission mode.   One of the key strategies in the draft talks of recognising spectrum as a key natural resources for public benefit … Read more DMPQ: Higher teledensity will help to solve various problems. In light of this discuss the recently drafted National telecom policy.

DRDO has played a stellar role since its inception in 1958. Having established a sound ecosystem and supported by a large pool of committed manpower, we have today a proven competence to produce strategic and state-of-the-art tactical military hardware and related technologies, in diverse disciplines covering Aeronautics, Missiles, Naval Systems, Armament & Combat Engineering, Electronics, … Read more DMPQ:  Discuss the role played by DRDO in Life science field. 

Most of the nuclear reactors work on the principle of nuclear fission. The energy released in the reaction is used to turn water into steam. The steam is used to run the turbine. Diff types of nuclear reactor: Type of reactor Characteristics Light water reactor 1.    Boiling water reactor ·         Reactor core heats water which … Read more DMPQ: Discuss the types of nuclear reactors.

Most of the nuclear reactors work on the principle of nuclear fission. The energy released in the reaction is used to turn water into steam. The steam is used to run the turbine. Diff types of nuclear reactor: Type of reactor Characteristics Light water reactor 1.    Boiling water reactor ·         Reactor core heats water which … Read more DMPQ: Discuss the types of nuclear reactors.

Uranium is one of the fissile material which is used for power generations. But All isotopes are not categorised as fissile. The certain minimum standards have to be met to qualify as fissile material: It should be able to sustain the chain reaction. It should have a high probability of fission when bombarded with slow/fast … Read more DMPQ: What are the qualities of a fissile material. Discuss the advantage of Thorium reactors.

Radioactivity is a physical process. As the name implies it is the act of emitting radiation spontaneously. In simple terms if atomic nucleus is unstable and want to loose some energy, it will release energy in the form of radiations. There are several types of particles or waves that may shoot out of a radioactive … Read more DPMQ : What is radioactivity? List down the application of radioactivity

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 DMPQ: What is Li-fi technology? List down its application

Neutrinos are the elementary particles found in the universe, which have no charge and have very little mass. They are electrically neutral and have weak interactive force. They are generally formed in the nuclear core of the sun. Radio active decay is also one of the source of neutrinos. They have the unique property of … Read more DMPQ: What are neutrinos? How they are formed and list down their applications.

It is an advance technology of genetic engineering to rectify the abnormalities occurring in the mitochondria due to mutation. The mutation severely affects the functioning of mitochondria in the baby. As a result baby may suffer from disease like Alzheimer’s and Parkinson disease. In sexual reproduction, Mitochondrial DNA is obtained from exclusively from the mother. … Read more DMPQ: What is 3 parent child?

Net neutrality is the principle that internet service providers and governments should    treat all data on the internet equality , not discriminating or charging differently by user, content, site, platform application, type of attached equipment or mode of communication.      It is about not giving special privileges to some website like in the form of speeding … Read more DMPQ: What is net neutrality? Write down the significance.

Net neutrality is the principle that internet service providers and governments should    treat all data on the internet equality , not discriminating or charging differently by user, content, site, platform application, type of attached equipment or mode of communication.      It is about not giving special privileges to some website like in the form of speeding … Read more DMPQ: What is net neutrality? Write down the significance.

Genetic modified crop as the name suggest is modified form of crop in which nuclear material of parent crop is altered and modified to its advantage by use of genetic engineering. Example of genetic crops are Bt cotton, bt brinjal etc. Advantage: Drought resilient varieties, pest resilient varieties can be grown. This will bring sustainability … Read more DMPQ: What are GM crops? Discuss its advantage and issue involved.

A blockchain is a digitized, decentralized, public ledger of all cryptocurrency transactions. Constantly growing as ‘completed’ blocks (the most recent transactions) are recorded and added to it in chronological order, it allows market participants to keep track of digital currency transactions without central recordkeeping. Each node (a computer connected to the network) gets a copy of the blockchain, which is downloaded … Read more DMPQ: What is blockchain technology? List down advantage and application

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?

Artificial intelligence is a way of programming a computer, robot to perform human like task such as visual perception, speech recognition, decision making and translation between language.   Artificial intelligence has wide application cutting across all sectors: In agriculture artificial intelligence is used for precision farming. This will increase the productivity and lower the input … Read more DMPQ: What is artificial intelligence? List down its application.

These are destructive software or malicious one which exists in the form of computer virus, computer worm, trojan or trojan horse which may get attached to email or gets in a file while downloading from a website or via compact discs. In the world of cyber era these software are highly dangerous. The types of … Read more DMPQ: What are malware? What are its different types?

When there are changes in the condition like temperature, light or nutrients the symbiotic linkage between algae and zooxanthellae gets deteriorated, causing them to turn white. In coral bleaching the density of zooxanthellae decline and the concentration of photosynthetic pigment decline which lead to decline in color. 20% of the coral reefs have already been … Read more DMPQ: What is coral bleaching? What are the causes of coral bleaching? 

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 What is navigation satellite? India launched IRNSS recently, what is IRNSS? What are its application?

An ecosystem is defined as the structural and functional unit of biosphere consisting of community of living beings and the physical environment, both interacting and exchanging materials between them. Ecosystems vary greatly in size and elements, but each is a functioning unit of nature. There are two components of ecosystems i.e. biotic and abiotic. Ecosytems … Read more What is ecosystem? Goods and services provided by the ecosystem is immense. Discuss

There are 23 pair of chromosomes in human body. When there is change in the number of the chromosomes or alteration in the structure of the chromosomes, It leads to chromosomal disorder. These orders are called syndromes. There are  two types of chromosomal disorders one is due to change in numbers. These are of two … Read more What are chromosomal disorders? Explain its types? Name and   explain any two types of   genetic disorders?

Nanoscience and Nanotechnology involves the concept of manipulating the extremely small things at nanoscale. At nanoscale things behave differently and this properties can be utilised across various fields of science like chemistry, biology, medicine, physics and material science. Nanotechnology has various application: Medicine: Nanoparticle can be used as effective drug deliver. This will help to … Read more What is nanotechnology? Write down its application and mention programmes initiated by government of India? 

The Human genome project was a large, international and multi-institutional effort that took 13 years from 1999 and $2.7 billion to produce a blueprint of the sequence of genes and space between  genes that make up a typical human genome. Following were the observation of HGP (read)- 99% of the total human DNA is junk … Read more What is HGP read? How it is different from HGP write? List down the application of Human genome project?