Current Affairs Today - Current Affairs 2017

हिंदी करंट अफेयर्स प्रश्नोत्तरी 2017 के लिए यहाँ क्लिक करें.

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Tamil Nadu wins Vijay Hazare Trophy

Tamil Nadu won the 2017 Vijay Hazare Trophy of cricket for record fifth time defeating Bengal. Earlier Tamil Nadu has won the trophy in 2002–03, 2004-05, 2008–09 and 2009–10 seasons.

In the final match played at the Feroz Shah Kotla Stadium (New Delhi) they defeated Bengal by 37 runs. It was Tamil Nadu’s third victory over Bengal in the final of this competition.

Opting to bat first, Tamil Nadu had set target of 217, riding on a century by Dinesh Karthik who had made 112. In reply, they bundled out Bengal for 180 in 45.5 overs. For Tamil Nadu Aswin Crist, Rahil Shah and M. Mohammad took 2 wickets each. Karthik was named man of the match. 

About Vijay Hazare Trophy

  • It is annual limited-overs cricket domestic competition started in 2002–03.
  • It is played among state teams from the Ranji Trophy plates.
  • It is also known as the Ranji One Day Trophy, named after the famous Indian cricketer Vijay Hazare.

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GRAPES-3 Telescope upgraded to detect solar storms

The GRAPES-3 experiment at TIFR’s (Tata Institute of Fundamental Research) Cosmic Ray Laboratory in Ootacamund in Tamil Nadu is getting upgraded to detect solar storms.

GRAPES-3 (Gamma Ray Astronomy PeV EnergieS phase-3) experiment had detected the effect of a solar storm that hit the earth in June 2015.

Key Facts
  • GRAPES-3 has an important role in understanding the propagation of storms from the L1 point (Lagrange point 1) to its impact on the Earth.
  • The upgraded detector will have an increased coverage and improved capacity to determine the direction of incident cosmic rays.
  • It will play a major role in getting precise information about the propagation of storms in the last million miles (from the L-1 point) of their journey from the Sun to the earth.
Background

The Sun is at a distance of 150 million kilometres from the earth. Satellites are placed at a distance of nearly 1.5 million kilometres, at the so-called L1 point (between Earth and Sun), where they orbit the Sun along with the Earth. The satellites act as an early warning system as the charged particles from a solar storm first impact the satellites before hitting the earth.

About GRAPES 3 experiment

The GRAPES-3 experiment is located at Ooty in India. It was started as a collaboration of the TIFR and the Japanese Osaka City University, and now also includes the Japanese Nagoya Women’s University. It is specially designed to study cosmic rays with an array of air shower detectors and a large area muon detector. It aims to probe acceleration of cosmic rays in the four astrophysical settings.

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