UPSC Prelims Facts – 22 April 2025

Indian Air Force is participating in Exercise Desert Flag-10.

  • Multinational Air Combat Drill hosted by the UAE Air Force
  • Involves air forces from India, the US, UK, France, Germany, Australia, and other nations.
  • Indian Air Force Participation – India has deployed MiG-29 and Jaguar aircraft to enhance interoperability and combat readiness.
  • Objective – Focuses on complex fighter engagements, operational knowledge exchange, and best practices among participating air forces

Aryabhata completed 50 years.

  • India’s 1st Satellite – Launched on April 19, 1975, Aryabhata was India’s first indigenously built satellite, marking a milestone in space exploration.
  • Conducted experiments in X-ray astronomy, aeronomics, and solar physics, but suffered a power failure after five days.
  • Built by ISRO and launched by the Soviet Union from Kapustin Yar using a Kosmos-3M rocket.
  • Legacy – The satellite’s image was featured on Indian two-rupee banknotes between 1976 and 1997, symbolizing India’s space ambition

China alleged intrusion by the Philippines in the contentious Scarborough Shoal waters

  • Disputed Territory – Located in the South China Sea, claimed by both China and the Philippines, leading to ongoing territorial disputes.
  • The shoal is 220 km west of Luzon, Philippines, and is considered within the Philippines’ Exclusive Economic Zone (EEZ).
  • Since 2012, China has maintained a coast guard presence, effectively controlling the shoal despite international legal challenges

Arts College building of Osmania University (OU), Hyderabad, Telangana, has become the third structure in India to receive a trademark for its exterior design.

  • Trademark protection is granted under the Indian Trademarks Act, 1999, ensuring exclusivity for commercial use.
  • 1st Trademarked Building – The Taj Mahal Palace Hotel in Mumbai became India’s first trademarked building in 2017, protecting its architectural identity.
  • Bombay Stock Exchange (BSE) – In 2018, the BSE building also received trademark protection, restricting commercial use of its image.
  • Global Precedents – Similar trademarks exist for Empire State Building (US), Eiffel Tower (France), and Sydney Opera House (Australia)

ISRO satellite CROP estimated wheat Crop Area and production in India.

  • A semi-automated, scalable framework, developed by National Remote Sensing Centre (NRSC)/ISRO.
  • Enables the near real-time monitoring of crop sowing and harvesting during the Rabi season across India.
  • Uses Optical and Synthetic Aperture Radar (SAR) remote sensing datasets from EOS-04 (RISAT-1A), EOS-06 (Oceansat-3) and Resourcesat-2A, for the Rabi season, 2024-25

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