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Zero shadow day - Shanmugam IAS academy in coimbatore
Zero shadow day

What’s in news?

The day was observed in various parts of the state Maharashtra from May 16. In Aurangabad, the shadow was completely vanished during the noon on May 18. 

Key data’s:

  • The lack of shadow happens twice a year, for places between +23.5- and -23.5-degrees latitude.
  • The Sun is almost never exactly overhead at noon, but usually transits a bit lower in altitude, a bit to the north or a bit to the south.
  • Earth’s rotation axis is inclined at 23.5 degrees to the plane of its revolution around the Sun, which is why we have seasons.
  • For people living between +23.5- and -23.5-degrees latitude, the Sun’s declination will be equal to their latitude twice – once during Uttarayan and once during Dakshinayan. On these two days, the Sun will be exactly overhead at noon and will not cast a shadow of an object on the ground.
  • The Zero Shadow Day will clearly be different for different places on earth. 
  • Even if Zero Shadow Day happens again in July when the Sun is on its southward journey, it often cannot be observed properly due to rainy season. 



What’s in news?

Anish Kapoor’s works register highest demand in terms of value and lots in auction houses and ranks first on Hurun India Art list

Key data’s:

  • The Hurun Research Institute released the Hurun India Art List 2019, a ranking of the top 50 Indian artists alive, based on the sales of their works at public auctions from April 2018 to March 2019.
  • This is the first edition of the Hurun Art List.
  • Resale value of some of the works of the top artists delivers better returns than traditional asset classes. 
  • As per this ranking backed by sales quantified at ₹168.25 crore, Anish Kapoor, 65, tops the list, followed by Akbar Padamsee and Krishen Khanna, whose works were sold at ₹45.84 crore and ₹9.48 crore respectively.

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