UPSC Prelims Facts – 22 November 2023

upsc prelims facts

At 42nd edition of India International Trade Fair (IITF) in New Delhi, Jamdani sari (muslin) has been showcased.

  • Origin – Persia
  • A vividly patterned, sheer cotton fabric, traditionally woven on a handloom by craftspeople and apprentices around Dhaka (Bangladesh).
  • Weaving technique – Bengali origin; Motif appears same on front and reverse side of sari.
  • Uppada Jamdani Sarees (Andhra Pradesh) is a registered Geographical Indication product.

Scientists have recently discovered nitrogen-9 nuclei which contains 7 protons and 2 neutrons.

  • An isotope of nitrogen.
  • It is an unusually high proton-to-neutron ratio.
  • It has a critical effect on the isotope’s stability, influencing its decay processes as well as overall behaviour.
  • It only exists for one billionth of a nanosecond.

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