TNPSC CURRENT AFFAIRS (ENGLISH) – 29.01.2025

  1. DEEPSEEL AI MODEL JOLTS GLOBAL TECH LANSCAPE

SUBJECT: SCIENCE AND TECHNOLOGY

  • Deep Seek launchedDeepSeek-R1andDeepSeek-v3AI models, rivaling U.S. giants like OpenAI’s GPT-4
  • Trained forunder $6 million(vs. billions by U.S. firms); operational cost50x cheaperthan GPT-4
  • Nvidia’s market value dropped by$0.5 trillion post-announcement.
  • DeepSeek’s AI Assistant overtook ChatGPT as the top free app on Apple’s App Store.
  • Skepticism over chip access (alleged use of50,000 restricted Nvidia H100 chips).
  • Data security concerns due to China’s stringent regulations.

2. STRATEGIC NEED FOR TUNGSTEN MUST BE BALANCED AGAINST ECOLOGICAL CONCERNS

SUBJECT: ENVIRONMENT

  • Tungsten crucial for defense/high-tech industries; India imports 95%
  • Auction annulled due to proximity to Arittapatti(Tamil Nadu’s first biodiversity heritage site)
  • Central vs. State conflict (DMK’s muted opposition; BJP’s U-turn post-protests).
  • GSI tasked with redefining mining boundaries
  • Balancing ecological preservation (cave temples, rare species) vs. strategic resource needs.

3. THE IMPACT OF CLASSIFYING DENOTIFIED TRIBES

SUBJECT: GEOGRAPHY

  • First-ever categorizationof268 denotified, semi-nomadic, and nomadic tribesby:
  • Anthropological Survey of India (AnSI)
  • Tribal Research Institutes (TRI)
  • Classification Outcomes: 179 communities recommended for SC, ST, or OBC inclusion.
  • 85 communities identified for classification for the first time.
  • 63 communities not trace able due to assimilation, migration, or name changes.
  • Criminal Tribes Act, 1924(repealed in 1949) led to misclassificationof DNTs.
  • Previous Committees Attempted Classification:
  • First Backward Classes Commission (1953)
  • Lokur Committee (1965)
  • Mandal Commission (1980)
  • Renke Commission (2008)
  • Idate Commission (2017)(documented 1,200+ DNT communities).
  • Special Committee under NITI Aayog to finalize categorization. Debate over SC/ST/OBC inclusion or a separate DNT category.
  • State governments may initiate independent classification

4. ISRO SET FOR A HISTORIC 100TH LAUNCH FROM SRIHARIKOTA

SUBJECT: SCIENCE AND TECHNOLOGY

  • Mission:GSLV-F15(carrying navigation satelliteNVS-02).
  • Historic Milestones: First Launch (1979): SLV-3 E10 under Dr. APJ Abdul Kalam.
  • Landmark Missions: Chandrayaan (2008, 2019, 2023), Aditya-L1 (2023), PSLV-C37 (104 satellites in 2017).
  • Sriharikota’s Advantage: Proximity to equator, uninhabited safety zones

5. REPLACE REGULAR TABLE SALT WITH LOWER SODIUM SALT SUBSTITUTES THAT CONTAINS POTASSIUM : WHO

SUBJECT: SCIENCE

  • Replace regular salt with potassium-enriched alternatives(for adults without kidney issues).
  • Aim: Reduce sodium intake to <2g.day to curb hypertension, CVDs, and strokes.
  • India’s Context: High salt consumption culture; need for affordable substitutes.
  • Caveats: Avoid for pregnant women, children, and kidney patients

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