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National science day


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National science day

  1. 1. 28th February
  2. 2. “National Science Day” is commemorated in the honors of Sir C.V.Raman for his legacy, who discovered Raman effect on 28th Feb. 1928.
  3. 3. IMPORTANCE OF THE DAY • It was a g r eat achievement and for that he r eceived Nobel Prize which was the fir st Nobel Prize in science for Asia. Hence the day is of g r eat impor tance for Indian science and scientific
  4. 4. HISTORY In 1986, NTSC took initiative to get the Government of India to designate February 28 as the National Science Day which is now celebrated all over India.
  5. 5. Through the life of C.V Raman…
  6. 6. Chandrashekhara Venkata Raman was born on November 7, 1888 in Tir uchinapalli , Tamil- Nadu. He was the second child of Chandrasekhar Iyer and Parvathi Amma.
  7. 7.  After his studies, in 1917, at the age of 29, Raman became a Professor at Calcutta university.  In 1919 Raman elected as the secretary of Indian Association for the cultivation of science
  8. 8. In 1929 the British Government knighted him; thereafter Professor Raman came to be known as Professor Sir C.V.Raman.
  9. 9. In 1930, Sir C.V. Raman was awarded with Nobel Prize in Physics for his work on scattering of light. The discovery was later christened as "Raman Effect".
  10. 10. Showing his Nobel prize to a British Journalist
  11. 11. In order to encourage scientific research in India, Raman established the Indian Academy of Science Banglore in 1934 and the Raman Research Institute (1948).
  12. 12. Sir C.V. Raman during a lecture at the Raman Research Institute in Bangalore, circa 1959.
  13. 13. In 1948 this great scientist entered on one more active phase of life when he became the Director of the Raman Research Institute. 
  14. 14. With awards and mementos stored in a steel almirah at the Institute, circa 1959.
  15. 15. What is Raman effect?
  16. 16. The wavelength of a small fraction of the radiation scattered by certain molecules differ from that of the incident beam;