General Studies 3

Energy: International Thermonuclear Experimental Reactor (ITER)

Basics What is it?: International Thermonuclear Experimental Reactor is the most advanced and the world’s largest Tokamak facilitating magnetic fusion reactions on a large scale to harness carbon-free and sustainable fusion energy. Location: ITER  under construction in France. Members: ITER, … Continue reading

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Energy: Tokamak

Basics About Tokamak A tokamak is a device designed to harness nuclear fusion, the reaction that powers the sun and all the stars.  In a tokamak, magnetic field coils confine plasma to achieve the required conditions for fusion on the … Continue reading

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Energy: India’s Three Stage Nuclear Power Programme

Stage 1 Pressurized Heavy Water Reactors are based on natural uranium that contains 99.3% U-238 and 0.7% U-235. U-235 being fissile sets up the chain reaction and U-238 being non-fissile gets converted to Pu-239 as a byproduct (spent fuel) which … Continue reading

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Communication: Satellite Internet Technology

What is it? Satellite Internet works similarly to satellite TV. It begins with an internet service provider sending satellites into space to orbit around the Earth. That ISP then relies on a signal routed through one of those satellites in … Continue reading

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Communication: 5G Technology

What is it? 5G is the fifth generation of cellular mobile communications with revolutionary services, which succeeds the 4G, 3G, and 2G (GMS) systems.  5G technology is the next generation of mobile networking standards and promises to deliver an improved … Continue reading

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Communication: Spectrum

What is spectrum? Spectrum refers to the invisible radio frequencies that wireless signals travel over. The frequencies we use for wireless are only a portion of what is called the electromagnetic spectrum. Devices such as cellphones, radios, wifi, etc. require … Continue reading

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Information and Technology: Cryptocurrency

What is it? Cryptocurrency, also known as crypto, is a type of digital currency that operates through a computer network without the need for a central authority like a government or bank to oversee it. It works as a decentralized … Continue reading

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Information and Technology: Blockchain

Advantages Transparency: Provides a public ledger for easy verification and accountability. Security: Uses cryptographic protection and decentralization to prevent tampering. Decentralization: Eliminates intermediaries by enabling peer-to-peer transactions. Efficiency: Automates processes with smart contracts and reduces transaction time. Cost Savings: Lowers … Continue reading

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Information and Technology: Supercomputer

Basics A supercomputer is a computer with a high level of performance as compared to a general-purpose computer because its architectural and operational model depends on parallel and grid processing. The primary motive for designing supercomputers was to be used … Continue reading

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Information and Technology: Semiconductor

Definition and Importance Definition: It is a material product composed of silicon, which conducts electricity more than an insulator, such as glass, but less than a pure conductor, such as copper or aluminum. Importance: Semiconductors are critical technological components for … Continue reading

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