šŸ’„Join UPSC 2027,2028 Mentorship (July Batch) + XFactor Notes & Microthemes PDF

Subject: Science and Technology

  • Sustainable Construction using Mycelium Bricks

    Why in the News?

    A promising eco-friendly alternative gaining attention is mycelium bricks—a biodegradable, lightweight, and fire-resistant material derived from fungal filaments.

    What Are Mycelium Bricks?

    • Mycelium is a network of thin fungal strands called hyphae that function similarly to plant roots.
      • It grows in soil or other substrates, secreting digestive enzymes to break down organic material, providing nutrients to the fungi, plant partners, and other organisms.
    • Mycelium bricks are made by combining sawdust, husk, and fungal spores, which then solidify into a lightweight, insulating material over a few days.
    • They are biodegradable, fire-resistant, and offer thermal insulation, making them a potential green alternative to conventional bricks.

    Advantages of Mycelium Bricks

    • Lower Carbon Footprint: Mycelium bricks don’t require high-temperature kilns, significantly reducing COā‚‚ emissions.
    • Lightweight: Easier to transport and handle, reducing logistics-related emissions.
    • Good Thermal Insulation: Helps regulate indoor temperatures, reducing energy consumption in buildings.
    • Biodegradability: Mycelium naturally decomposes, making it a zero-waste material.
    • Versatile Applications: Potential use in interior panelling, circuit boards, liquid filters, and sports equipment.

    Challenges Limiting Large-Scale Adoption

    • Lower Load-Bearing Strength: Mycelium composites have a high strength-to-weight ratio, but they are 100 times weaker than concrete.
    • Susceptibility to Moisture:Ā  Mycelium is highly absorbent, making it prone to fungal decay and moisture damage in humid environments.
    • Shorter Lifespan: Unlike conventional bricks, mycelium biodegrades within a few years, raising concerns about long-term durability.

    PYQ:

    [2023] Consider the following statements:

    1.Some mushrooms have medicinal properties.

    2.Some mushrooms have psychoactive properties.

    3.Some mushrooms have insecticidal properties.

    4.Some mushrooms have bioluminescent properties.

    How many of the above statements are correct?

    (a) Only one (b) Only two (c) Only three (d) All four

     

  • Genetically-Engineered Bananas to Reduce Food Waste

    Why in the News?

    Scientists at Tropic, a UK-based biotech company, disabled the PPO gene in bananas slowing down the browning process while allowing normal ripening.

    About the Genetically Engineered Bananas

    • Genetically engineered bananas are modified using biotechnology to extend shelf life, resist browning, and enhance durability.
    • These bananas stay yellow for 12 hours after peeling and are less prone to bruising.
    • The modification prevents enzymatic browning, making bananas look fresh for longer without altering their ripening process.
    • The modification targets polyphenol oxidase (PPO), the enzyme responsible for browning.
    • By disabling PPO activity, oxidation of pigments is slowed, delaying the formation of brown spots.

    Gene-Silencing Method Used:

    • RNA interference (RNAi) is used to silence the PPO gene, reducing its activity without affecting overall banana development.
    • RNAi introduces small RNA molecules that block PPO gene expression, preventing the synthesis of the browning enzyme.
    • This method is precise and does not introduce foreign DNA, making it different from traditional genetically modified organisms (GMOs).
    • Gene-editing techniques like CRISPR-Cas9 are also being explored for future crop modifications.

    PYQ:

    [2019] ‘RNA interference (RNAi)’ technology has gained popularity in the last few years. Why?

    1. It is used in developing gene silencing therapies.

    2. It can be used in developing therapies for-the treatment of cancer.

    3. It can be used to develop hormone replacement therapies.

    4. It can be used to produce crop plants that are resistant to viral pathogens.

    Select the correct answer using the code given below:

    (a) 1, 2 and 4 (b) 2 and 3 (c) 1 and 3 (d) 1 and 4 only

     

  • What are Collisionless Shock Waves?

    Why in the News?

    A recent study published by Johns Hopkins University (USA) and Northumbria University (UK) reveals how Collisionless Shock Waves act as cosmic accelerators, helping subatomic particles gain ultra-high energy and travel vast distances in space.

    What are Collisionless Shock Waves?

    • Collisionless shock waves are disturbances in plasma (ionized gas) where energy transfer occurs without direct particle collisions, relying instead on electromagnetic forces.
    • They are found in supernova remnants, black hole disks, pulsars, magnetars, and planetary magnetospheres.
    • They act as natural cosmic accelerators, boosting electrons and other charged particles to ultra-high speeds.

    Key Findings from the Study

    • NASA’s MMS, THEMIS, and ARTEMIS missions observed an electron acceleration event near Earth’s bow shock on December 17, 2017.
    • Electrons in Earth’s foreshock region gained 500 keV of energy, reaching 86% of the speed of light, a huge increase from their usual 1 keV.
    • Diffusive shock acceleration (known for producing high-energy cosmic rays) requires electrons to already be moving at 50% of light speed before further acceleration can occur.
    • The study identifies how electrons receive this initial boost, a long-standing astrophysical mystery.
    • Scientists have long assumed that supernova explosions are the primary source of cosmic rays.
    • The recent study suggests that planetary magnetospheres interacting with stellar winds could also contribute to high-energy cosmic rays.

    How Shock Waves accelerate Particles without Collisions?

    • Unlike in solids, liquids, or gases, where energy is transferred via molecular collisions, plasma particles interact through electromagnetic fields.
    • This allows shock waves to accelerate electrons without direct contact.
    • Multi-Stage Acceleration Process:
      1. Plasma waves interact with electrons, imparting initial energy.
      2. Magnetic turbulence in the shock front causes electrons to spiral, further increasing their speed.
      3. Repeated interactions with plasma waves push electrons to relativistic speeds.
    • Role of Earth’s Bow Shock & Foreshock:
      • When the solar wind collides with Earth’s magnetosphere, it forms a shock wave.
      • The foreshock region ahead of this wave is highly turbulent, enabling efficient electron acceleration.

    PYQ:

    [2009] In the year 2008, which one of the following conducted a complex scientific experiment in which sub-atomic particles were accelerated to nearly the speed of light?

    (a) European Space Agency

    (b) European Organization for Nuclear Research (CERN)

    (c) National Aeronautics and Space Administration (NASA)

    (d) National Academy of Sciences, USA

     

  • ā€˜AI Kosha’ Platform

    Why in the News?

    The Union Government has launched AI Kosha, a platform dedicated to non-personal datasets, marking a major step in India’s AI research and development efforts.

    What is AI Kosha?

    • AI Kosha is a government-backed platform for non-personal datasets to support Artificial Intelligence (AI) R&D in India.
    • It serves as a centralized repository of structured datasets aimed at training AI models, particularly for Indian languages.
    • The platform is a key part of the IndiaAI Datasets Platform, one of the seven pillars of the ₹10,370 crore IndiaAI Mission, which aims to democratize AI access and innovation.
    • At launch, it hosts 316 datasets, with a significant portion focused on language translation tools for Indian languages.
    • The government has commissioned 14,000 GPUs for AI research, up from 10,000 earlier this year.
    • More computing power will be added quarterly to support advanced AI research and training.

    Key Features of AI Kosha:

    • AI Kosha aims to support India’s first foundational AI model, similar to China’s DeepSeek.
    • Works alongside the Open Governance Data Platform (data.gov.in), which already hosts 12,000 datasets from various government agencies.
    • Focuses on Indian languages, ensuring regional language AI development.
    • Includes health records, satellite imagery, Census 2011 data, meteorological and pollution data.
    • Supports AI development with access to high-performance computing (HPC) resources.
    • Equipped with secure API access, data encryption, and real-time filtering for data protection.
  • Is Artificial Intelligence affecting critical thinking skills?

    Why in the News?

    Artificial Intelligence (AI) tools are being used more and more in classrooms worldwide.In India, a study by TeamLease EdTech last year found that over 61% of educators are using AI tools.

    What are the key findings as per the TeamLease EdTech?

    A study by TeamLease EdTech titled “Revolutionising Classrooms: The Impact of Generative AI on the Future of Education” surveyed over 6,000 educators across India, including school teachers and university professors.Ā 

    • Widespread Adoption of AI Tools: Approximately 61.60% of educators are utilizing AI tools for teaching, preparation, and student engagement.
    • Recognition of AI’s Transformative Potential: Around 64.87% of educators acknowledge that AI has the potential to transform learning experiences and personalize education.
    • Preparation for an AI-Dominated Future: About 63.61% of educators believe that integrating AI is crucial for preparing students for a future where AI is prevalent.
    • Advocacy for AI Regulation: A significant 87.85% of educators support government regulation and monitoring of AI development and application to address ethical implications.
    • Need for Teacher Training in AI: Approximately 54.92% of educators express the need for AI training to ensure teachers are prepared for AI integration in education.

    What are the key concerns regarding the use of AI in education?

    • Over-Reliance on AI and Reduced Critical Thinking: Students may become dependent on AI-generated responses, leading to a decline in their ability to critically analyze information. Example: If students use AI tools like ChatGPT for essay writing without verification, they may accept biased or inaccurate information without questioning it.
    • Ethical and Privacy Issues: AI tools collect and store user data, raising questions about the privacy and security of sensitive academic information. Example: Using AI-powered platforms without adequate security may expose student data to third parties, violating privacy regulations like GDPR.
    • Unequal Access and Digital Divide: Not all students and institutions have equal access to advanced AI tools, widening the educational inequality gap. Example: Rural schools with limited technological infrastructure may struggle to implement AI-based learning.

    Why is it important for educational institutions to develop their own AI usage policies?

    • Ensuring Ethical and Responsible AI Use: Clear policies guide the ethical use of AI, preventing misuse, plagiarism, and data breaches. Example: A university policy on AI-assisted research can outline acceptable use, ensuring students disclose AI-generated content in academic work.
    • Protecting Student Privacy and Data Security: Policies help safeguard sensitive student information and comply with legal standards like GDPR or India’s DPDP Act. Example: Schools can restrict AI tools from accessing personal data by enforcing guidelines on how and when these technologies are used.
    • Maintaining Academic Integrity and Fair Assessment: AI policies uphold the integrity of learning by defining appropriate AI use in assignments and assessments. Example: A school policy may allow AI for research assistance but prohibit its use in writing final exam essays to ensure fair evaluation.

    When should AI tools be integrated into the curriculum?Ā 

    • When Enhancing Personalized Learning: AI tools should be introduced when they can tailor educational content to individual student needs, improving learning outcomes. Example: Adaptive learning platforms like Khan Academy or Duolingo can adjust the difficulty of lessons based on a student’s progress, offering personalized learning paths.
    • When Supporting Skill Development for the Future: AI should be integrated when it helps students develop critical skills like data analysis, problem-solving, and digital literacy, which are essential for future careers. Example: Teaching AI programming using platforms like TensorFlow or Scratch can prepare students for careers in technology and data science.
    • When Facilitating Innovative Teaching Methods: AI tools should be included when they enhance creative and interactive teaching approaches that traditional methods cannot achieve. Example: Virtual labs using AI simulations in subjects like biology or physics allow students to conduct experiments safely and repeatedly, improving comprehension.

    How can educators balance the use of AI while fostering critical thinking and analytical skills in students?

    • Aligning AI Tools with Specific Learning Outcomes: AI should be used when it directly supports and enhances the achievement of clearly defined educational goals. Example: If the objective is to improve analytical reasoning, AI-powered data visualization tools like Tableau can help students interpret complex datasets and draw meaningful insights.
    • Enhancing Critical Thinking and Problem-Solving Skills: AI should be integrated when it fosters deeper learning by encouraging inquiry, creativity, and solution-oriented thinking. Example: AI-driven coding platforms like Scratch or Python Tutor can promote computational thinking and logical reasoning through hands-on programming tasks.
    • Supporting Assessment and Feedback Mechanisms: AI should be used to provide timely, personalized feedback that aligns with the learning objectives and helps track student progress. Example: Automated grading systems like Grammarly or Turnitin can assist in assessing writing skills and offer constructive feedback to improve academic writing.

    Way forward:Ā 

    • Develop Comprehensive AI Literacy Programs: Equip educators and students with the skills to critically evaluate AI outputs, ensuring responsible and informed use.
    • Establish Clear, Adaptive AI Governance Frameworks: Implement dynamic policies that balance innovation with ethical standards, ensuring equitable access and academic integrity.

    Mains PYQ:

    Q Critically examine the Supreme Court’s judgement on ā€˜National Judicial Appointments Commission Act, 2014’ with reference to the appointment of judges of higher judiciary in India.(UPSC IAS/2017)

  • Successful PHTA Test of ISRO’s Semi-Cryogenic Engine

    Why in the News?

    ISRO successfully conducted a hot test on the semi-cryogenic engine (SE2000), a key step towards finalizing the cryogenic stage for future launch vehicles. This Power Head Test Article (PHTA) is the first hardware test for semi-cryogenic engines.

    About the SE2000 Engine

    • The SE2000 engine is a semi-cryogenic rocket engine developed by ISRO to enhance propulsion for future heavy-lift launch vehicles.
    • It is designed to power the booster stages of rockets, increasing payload capacity and efficiency.
    • The engine operates on a Liquid Oxygen (LOX) and Refined Kerosene (RP-1) combination, unlike traditional cryogenic engines that use LOX and Liquid Hydrogen (LH2).
    • Key features of the SE2000 engine:
      • Thrust capability: 2000 kN (kilonewtons), making it one of ISRO’s most powerful engines.
      • Higher density impulse: Provides better efficiency than LOX-LH2 combinations.
      • Cost-effective: Kerosene is cheaper and easier to handle than liquid hydrogen.
      • Storage advantages: Kerosene can be stored at ambient temperatures, unlike liquid hydrogen, which requires -253°C for storage.
    • The engine is expected to enhance the performance of LVM3 and will be used in ISRO’s Next Generation Launch Vehicle (NGLV).
    • Applications of the SE2000 engine:
      • Heavy-lift launch missions with increased payload capacity.
      • Future space exploration programs, including human spaceflight missions like Gaganyaan.
      • Reusable launch vehicles, contributing to cost-effective and sustainable space travel.

    What is the PHTA Test?

    • The PHTA test is a crucial hardware test conducted as part of the SE2000 semi-cryogenic engine development process.
    • It is designed to validate key engine subsystems before full-scale integration and testing.
    • Purpose of the PHTA test:
      • Ensure subsystems perform as expected under operational conditions.
      • Evaluate pressure, temperature, thrust efficiency, and fuel combustion.
      • Identify potential technical issues before moving to full engine testing.
    • A previous attempt in July 2023 was aborted due to technical issues at ISRO’s Mahendragiri facility.

    Back2Basics: Semi-Cryogenic vs. Cryogenic Engines

    • A semi-cryogenic engine uses liquid oxygen (LOX) and kerosene as propellants, making it easier to handle and store than the cryogenic engine, which uses liquid hydrogen (LH2).
    • Semi-cryogenic engines are less efficient but more cost-effective and practical for Earth-orbit missions.
    • Cryogenic engines offer higher performance due to the higher specific impulse of liquid hydrogen but are more complex to store and manage.
    • Semi-cryogenic engines strike a balance between cost, efficiency, and simplicity.

     

    PYQ:

    [2018] With reference to India’s satellite launch vehicles, consider the following statements:

    1. PSLVs launch the satellites useful for Earth resources monitoring whereas GSLVs are designed mainly to launch communication satellites.

    2. Satellites launched by PSLV appear to remain permanently fixed in the same position in the sky, as viewed from a particular location on Earth.

    3. GSLV Mk III is a four-stage launch l vehicle with the first and third stages l using solid rocket motors; and the second and fourth stages using liquid rocket engines.

    Which of the statements given above is/are correct?

    (a) 1 only

    (b) 2 and 3

    (c) 1 and 2

    (d) 3 only

     

  • UN Committee on Peaceful Uses of Outer Space (COPUOS)

    Why in the News?

    In December 2024, a 500 kg metal object crashed in Makueni County, Kenya, highlighting the growing concern over uncontrolled satellite re-entries, for which the UN Committee on the Peaceful Uses of Outer Space (COPUOS) remains accountable.

    It has yet to implement binding regulations on space debris disposal and re-entry control.

    About the UN Committee on the Peaceful Uses of Outer Space (COPUOS)

    • The COPUOS was established in 1958 to promote international cooperation in the peaceful use of outer space and address legal issues related to space exploration.
    • The committee currently has 102 member states (as of 2022) and meets annually in Vienna, Austria.
    • COPUOS plays a key role in preventing the militarization of space and ensuring responsible space activity.
    • Historical Context:
      • Established following the launch of Sputnik in 1957, COPUOS was instrumental in preventing space from becoming a new conflict zone.
      • Resolution 1721 (1961) declared that international law applies in outer space and directed states to report all space launches to the UN public registry.
    • Subcommittees:
      • Scientific and Technical Subcommittee (meets in February).
      • Legal Subcommittee (meets in April).

    Space Treaties overseen by COPUOS:

    • COPUOS oversees five key UN treaties and agreements related to space activities:
    1. Outer Space Treaty (1967):Ā  Establishes principles for space exploration and prohibits national sovereignty over celestial bodies.
    2. Rescue Agreement (1968): Governs the rescue and return of astronauts and space objects.
    3. Liability Convention (1972): Defines responsibility for damage caused by space objects, introducing absolute liability for damages on Earth.
    4. Registration Convention (1976): Requires states to register launched space objects with the UN.
    5. Moon Treaty (1984): Regulates activities on the Moon and other celestial bodies.

    Defining Space Debris in Law

    • Space debris has no universally accepted legal definition in international treaties.
    • The UN Committee on the Peaceful Uses of Outer Space (COPUOS) defines it as non-functional man-made objects in Earth orbit or re-entering the atmosphere.
    • Legal disputes arise over whether a piece of debris qualifies as a “space object” under the 1972 Liability Convention.

    Liability Under International Space Law

    • Outer Space Treaty (1967), Article VI: States bear responsibility for national space activities, including those by private companies.
    • Liability Convention (1972): Introduced “absolute liability”, meaning launching states are automatically responsible for damage caused by space objects.
      • However, liability enforcement remains weak, and affected nations often struggle to claim full compensation.

     

    PYQ:

    [2014] International civil aviation laws provide all countries complete and exclusive sovereignty over the airspace above their territory. What do you understand by ā€˜airspace’? What are the implications of these laws on the space above this airspace? Discuss the challenges which this poses and suggest ways to contain the threat.

     

  • Wolly Mammoth Traits in Mice using Gene Editing

    Why in the News?

    Recently, Colossal Biosciences has created a “Woolly Mouse” by editing seven genes in mice embryos to mimic the cold-adaptive traits of woolly mammoths.

    What are Woolly Mammoths?

    • The Woolly Mammoth (Mammuthus primigenius) was a large, Ice Age herbivore that roamed Eurasia and North America, thriving in cold tundra environments.
    • It had a thick woolly coat, a fat layer for insulation, and small ears to minimize heat loss.
    • Mammoths lived in herds and primarily fed on grasses and shrubs.
    • They went extinct around 4,000 years ago, likely due to climate change, habitat loss, and human hunting.
    • Scientists believe reviving mammoth-like elephants could help restore Arctic ecosystems and slow permafrost thawing.

    Wolly Mammoth Traits in Mice using Gene Editing

    About Woolly Mice

    • The Woolly Mouse is a genetically modified laboratory mouse developed by Colossal Biosciences to test their de-extinction research.
    • Scientists successfully edited seven genes, resulting in mice with thick, woolly fur, mimicking the coat of a woolly mammoth.
    • Key Features of Woolly Mice:
      • Genetically engineered for cold-resistant traits using DNA modifications.
      • Long, thick, wavy fur and curled whiskers, resembling mammoth adaptations.
      • Created by combining multiple genetic variants into a single organism.
      • Serves as a model organism to test gene-editing techniques before applying them to Asian elephants, the closest living relatives of woolly mammoths.

    Technology Used in Woolly Mouse Development:

    • The CRISPR-Cas9 system was used to precisely modify DNA.
    • Scientists identified genes responsible for fur texture, length, and body fat metabolism, allowing them to engineer cold-resistant traits.
    • Scientists edited seven genes simultaneously, an unprecedented feat in genetic engineering.
    • Key genes modified included:
      • FGF5:Ā  regulates hair growth, making it longer and thicker.
      • MC1R: controls hair color, giving the mice a golden hue similar to mammoth fur.
      • Hair follicle structure genes: induced woolly hair texture, wavy coats, and curled whiskers.

    PYQ:

    [2013] Recombinant DNA technology (Genetic Engineering) allows genes to be transferred:

    1. across different species of plants

    2. from animals to plants

    3. from microorganisms to higher organisms

    Select the correct answer using the codes given below:

    (a) 1 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

     

  • DeepSeek’s market disruption must awaken India

    Why in the News?

    DeepSeek has disrupted the global tech industry and stock markets with its affordable artificial intelligence (AI) model.

    How does DeepSeek’s low-cost AI model pose a threat to India’s dominance in the global IT sector?

    • Cost Efficiency and Competitive Pressure: DeepSeek’s AI models, developed at a fraction of the cost compared to traditional models, could pressure Indian IT firms to reduce their prices, potentially impacting profit margins. For example, DeepSeek’s R1 model was built using less-advanced Nvidia H800 chips, significantly lowering development costs.
    • Acceleration of AI Adoption: The affordability of DeepSeek’s models may lead to faster AI adoption globally, compelling Indian IT companies to integrate AI rapidly into their services to remain competitive. This swift integration could strain resources and require substantial upskilling of the workforce.
    • Shift in Client Expectations: Clients may begin to expect more cost-effective AI solutions, challenging Indian IT firms to innovate and offer similar value propositions. This shift could disrupt traditional business models that rely on higher-cost infrastructures.
    • Increased Global Competition: DeepSeek’s success might inspire other low-cost AI entrants, intensifying competition in markets where Indian IT firms have traditionally held strong positions. This could lead to a more crowded marketplace, making differentiation more challenging.

    What lessons can Indian IT firms learn from DeepSeek’s approach to research and development (R&D)?

    • Prioritize Long-term Innovation Over Short-term Gains: DeepSeek treated AI development as a secondary initiative, yet its investment in long-term innovation led to groundbreaking success. Indian IT firms should allocate resources to explore emerging technologies beyond immediate client needs.
    • Utilize Surplus Capital for Experimental Projects: DeepSeek leveraged excess resources from its financial trading operations to invest in AI research. Indian IT companies can similarly channel surplus funds into experimental R&D, such as advanced AI and quantum computing.
    • Invest in Talent and Advanced Research: DeepSeek’s success was driven by advanced AI expertise. Indian IT firms should actively recruit and retain top researchers, particularly those with specialized skills (e.g., PhDs in machine learning), to drive future innovation.

    Why is increasing Gross Domestic Expenditure on R&D (GERD) crucial for India?

    • Enhances Technological Competitiveness: Higher R&D spending fosters innovation, enabling India to compete globally in emerging technologies like AI, quantum computing, and biotechnology. Without increased GERD, India risks falling behind nations like China, which invests over 2.43% of its GDP in R&D.
    • Drives Economic Growth and Job Creation: Increased R&D investment stimulates industrial innovation, leading to the development of new products, industries, and high-value jobs. Countries with higher GERD, like South Korea (4.93% of GDP), have seen robust economic growth driven by technological advancements.
    • Reduces Dependence on Foreign Technologies: Greater domestic R&D investment strengthens self-reliance in critical sectors such as defense, healthcare, and clean energy. For instance, India’s investment in space technology through ISRO’s R&D has reduced dependency on foreign satellite services while enhancing national security.

    Why is increasing Gross Domestic Expenditure on R&D (GERD) crucial for India?

    • Strategic National Security Advancement: Quantum technology can revolutionize secure communications through quantum encryption, making data virtually unhackable. Countries like China have already developed quantum communication satellites, enhancing their cybersecurity capabilities.
    • Global Competitiveness in Emerging Industries: Investing in quantum computing enables breakthroughs in industries like pharmaceuticals, finance, and logistics. For instance, quantum simulations can accelerate drug discovery by accurately modeling complex molecules.
    • Reducing Dependence on Foreign Technology: Developing indigenous quantum capabilities reduces reliance on global tech giants for advanced computing solutions. India’s National Quantum Mission (NQM) aims to build quantum computers and communication networks, promoting self-reliance.
    • Strengthening Scientific Collaboration and Talent Development: Quantum research encourages interdisciplinary collaboration and advanced skill development, attracting top scientific talent. India’s initiatives like the Quantum-Enabled Science & Technology (QuEST) program aim to build a skilled workforce and global research partnerships.

    How can India balance the growth of both manufacturing and services sectors to foster innovation and economic competitiveness? (Way Forward)

    • Promoting Synergy Between Manufacturing and Digital Services: Encourage the integration of advanced digital technologies (e.g., AI, IoT) in manufacturing to enhance productivity and global competitiveness. For instance, initiatives like “Make in India” combined with “Digital India” promote smart manufacturing and digital service exports.
    • Investing in Skill Development for Both Sectors: Develop a workforce equipped with technical and digital skills to meet the demands of both manufacturing and service industries. Programs like the Skill India Mission train workers in emerging technologies, bridging the gap between traditional manufacturing and modern services.
    • Strengthening R&D and Innovation Ecosystems: Foster public-private collaboration to drive research and innovation across sectors, ensuring technological advancements benefit both industries. For example, the Production Linked Incentive (PLI) scheme incentivizes domestic manufacturing while encouraging innovation in areas like electronics and pharmaceuticals.

    Mains PYQ:

    Q ā€œThe emergence of the Fourth Industrial Revolution (Digital Revolution) hasinitiated e-Governance as an integral part of governmentā€. Discuss. (UPSC IAS/2020)

  • What is Planetary Alignment?

    Why in the News?

    On February 29, 2024, skywatchers worldwide witnessed a rare planetary alignment (parade) with seven planets—Mars, Jupiter, Uranus, Neptune, Mercury, Saturn, and Venus—lining up in the night sky.

    What is Planetary Alignment?

    • A planetary alignment occurs when multiple planets in the Solar System appear to line up in the sky as seen from Earth.
    • This phenomenon happens because planets orbit the Sun in a flat, disc-shaped plane called the ecliptic.
    • Although planets remain millions of kilometers apart, they seem to form a straight line from Earth’s perspective due to optical illusion and perspective.
    • The term ā€œplanet paradeā€ is also used to describe this occurrence when multiple planets become visible in the sky at the same time.
    • Types of Planetary Alignments:
    1. Conjunction: Two or more planets appear close to each other in the sky.
    2. Small Alignment: Three planets align in a visible line.
    3. Large Alignment: Four or more planets appear aligned from Earth’s perspective.
    4. Full Alignment: All eight planets of the Solar System appear in a single line (very rare).

    How often do Planetary Alignments occur?

    • Planetary alignments are not uncommon, but their rarity depends on the number of planets involved.
      • Two- or Three-Planet Alignments: Occur multiple times a year.
      • Four- or Five-Planet Alignments: Visible every few years.
      • Six- or Seven-Planet Alignments: Appear every few decades.
      • Full Alignment (All Eight Planets): Extremely rare, occurs once every 170–200 years.
    • Recent & Upcoming Alignments:
      • August 2025: Expected four-planet alignment.
      • May 2492: The next predicted full planetary alignment of all eight planets.

    PYQ:

    [2019] On 21st June, the Sun:

    (a) does not set below the horizon at the Arctic Circle
    (b) does not set below the horizon at Antarctic Circle
    (c) shines vertically overhead at noon on the Equator
    (d) shines vertically overhead at the Tropic of Capricorn