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Science and Technology

Ebola Virus Disease – A Challenge to India
Ebola virus disease (EVD), formerly known as Ebola haemorrhagic fever, is a severe, often fatal illness in humans. The Ebola virus is transmitted to people from wild animals and spreads in the human population through human-to-human transmission.The Ebola virus causes an acute, serious illness which is often fatal if untreated. There are …
Genetically Modified Crops and Regulations in IndiaOctober 4, 2014 | Filed under: Current Affairs, Science and Technology

Genetically modified crops (GM crops) are plants used in agriculture, the DNA of which has been modified using genetic engineering techniques. In most cases the aim is to introduce a new trait to the plant which does not occur naturally in the species like resistance to certain pests, diseases, environmental …
Higgs Boson : The God Particle
The standard model of particle physics hypothesized about Higgs Boson in 1964. The discovery of Higgs particle was announced at CERN on 4 July 2012. The discovery has been called monumental because it appears to confirm the existence of the Higgs field, which is pivotal to the Standard Model and other …
Dark Matter vs Anti Matter vs Negative Matter
Matter is anything that has mass and takes space. But apart from the ‘normal’ matter, there are different other forms of hypothesized matter. A few examples include Dark Matter, Anti Matter and Negative Matter. You by now know that matter and energy are inter convertible; so there are Dark Energy, …
The Four Fundamental Forces of NatureJuly 28, 2014 | Filed under: Science and Technology

The Four Fundamental Forces of Nature are Gravitational force, Weak Nuclear force, Electromagnetic force and Strong Nuclear force. The weak and strong forces are effective only over a very short range and dominate only at the level of subatomic particles. Gravity and Electromagnetic force have infinite range. Let’s see each of them …
Fermions and Bosons : Particles Which Make The UniverseJuly 27, 2014 | Filed under: Science and Technology

There are possibly only two classes of ‘particles’ in the universe – Fermions and Bosons. All elementary particles (Quarks, Leptons, Guage Bosons, Static Bosons etc.) will fall under either of these two. Not only elementary particles, but also composite particles like Baryons (Eg: Protons, Neutrons etc.) will also fall under …
Standard Particle Model of Quantum Mechanics: Inside an AtomJuly 26, 2014 | Filed under: Science and Technology

Standard Particle Model of Quantum Mechanics is a mathematical model which explains the particle-wave nature of sub-atomic particles. This model proposed two major groups of elementary particles of matter, ie. Quarks and Leptons. The model also proposed elementary force carriers known as Gauge Bosons (responsible for the forces in nature) …
Classical Mechanics vs Quantum MechanicsJuly 26, 2014 | Filed under: Science and Technology

In this universe there are huge objects like planets and stars. There are also sub-atomic particles like protons and neutrons. You may note that at sub-atomic sizes, the wave nature of particles cannot be neglected and that the particles move at very high speeds. Which theory of Physics explains satisfactorily …
The Big Bang TheoryJuly 25, 2014 | Filed under: Science and Technology

Big Bang Theory is about the origin of Universe. It suggests that about 1370 crore (13.7 billion) years ago, all matter and energy in the universe was concentrated into an area smaller than an atom. At this instant, matter, energy, space and time were not existent. Then suddenly with a …
India’s Nuclear Weapon ProgrammeMay 28, 2014 | Filed under: Current Affairs, Foreign Relations, Internal Security, Science and Technology

Do you know who has his fingers on nuclear button in India? Prime Minister? Army Chief? Again, what is the role of Nuclear Command Authority (NCA)? What is Strategic Forces Command or Strategic Nuclear Command? We hope this post to clear your doubts related to India’s external security as we …
Nuclear Chemistry Basics ExplainedMarch 6, 2014 | Filed under: Science and Technology

Another article under our guest contributor program; this time covering the basics of nuclear chemistry. Those who have missed the last article covering basics of chemistry, you may read it here. Now let’s us focus on Nuclear Chemistry which is an area given stress in most of the UPSC Preliminary question …
Chemistry Basics ExplainedMarch 5, 2014 | Filed under: Science and Technology

“Chemistry Basics Explained” is an article under ClearIAS.com guest contributor program started with a vision of polishing the writing skills of UPSC aspirants. ClearIAS.com at this juncture would like to congratulate all the contributors who participated in ClearIAS.com for “Write Articles; Win Prizes” contest for the month of Feb 2014. We got …
GSLV D5, GSAT 14, Cryogenic Technology and ISROJanuary 7, 2014 | Filed under: Current Affairs, Science and Technology

The Indian Space Research Organisation (ISRO) achieved another milestone as it successfully launched the Geo-synchronous Satellite Launch Vehicle (GSLV-D5) from the Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh. GSLV launch is a great achievement as it used indigenous developed cryogenic engine. Let’s discuss in this post certain keywords …
FRP Composite Material And Its ApplicationsDecember 14, 2013 | Filed under: Science and Technology

Fibre-reinforced plastic (FRP) (also known as fibre-reinforced polymer) is a composite material made of a polymer matrix reinforced with fibres. Composites are established as an alternative material system to traditional materials such as steel, wood, aluminium and concrete. Bakelite was the first fibre-reinforced plastic. Materials used as Fibres in FRP composites Glass, …
Science, Technology and Innovation Policy (STI) 2013

Science, Technology and Innovation Policy (STI) 2013 seeks to send a signal to the Indian scientific community, both in the private and public domain, that science, technology and innovation should focus on faster, sustainable and inclusive development of the people. The policy seeks to focus on both STI for people and people for …
How To Study Science and Technology For IAS Exam?

Questions from Science and Technology is asked in UPSC Civil Services Prelims General Studies Paper 1 as well as in Mains General Studies Paper 3 (GS3). Science part deals with subjects like Physics, Chemistry and Biology. Technology part deals with application of various sciences. Questions can come from all latest technologies …