Karnataka Science and Technology Academy

Department of Science and Technology, Government of Karnataka

November 21: On This Day

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November 21: On This Day –  Dr. K. Chandrasekharan‘s Birthday

Dr. K. Chandrasekharan photo
  • Born on 21 November 1920 in Bapatla, Guntur district in Andhra Pradesh
  • The founder of the School of Mathematics at Tata Institute of Fundamental Research
  • He played a major role in the development of mathematics in post-independence India.
  • His mathematical interests centred around analysis and analytic number theory
  • one of the leading mathematicians of the 20th century who played a pivotal role in making TIFR a world-renowned centre for mathematics.

November 21: On This Day –  Hot Air Balloon:-First manned flight

  • On November 21, 1783 the first free flight carrying a human occurred in Paris, France in a hot air balloon made of paper and silk made by the Montgolfier brothers.
  • The balloon carried two men, Francois Pilatrê de Rozier and Francois Laurent, Marquis of Arlanders.
  • The balloon reached an altitude of at least 500 feet and traveled about 5½ miles before landing safely 25 minutes later.

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