National Science Day Current Affairs

28th February: National Science Day

The National Science Day is observed every year on 28th February with an objective to spread message of importance of science and its application among the people. The theme for National Science Day 2018 is “Science and Technology for a sustainable future.”

Significance of Day

The day is observed to mark the discovery of Raman effect by Physicist CV Raman on 28th February, 1928. For his discovery, CV Raman was awarded the Nobel Prize in Physics in 1930.

Background

The National Science Day was instituted by Central Government in 1986 based on the demand of National Council for Science and Technology Communication. The first National Science Day was celebrated on 28 February 1987.

It is celebrated to spread message about importance of science used in daily life of people and popularise science and technology. It also gives an opportunity to scientific-minded citizens in country to showcase their work in organized shows.

Raman effect

It is the inelastic scattering of a photon by molecules which are excited to higher vibrational or rotational energy levels.  In this phenomenon, some part of light beam after passing through transparent medium gets scattered. This phenomenon of scattering of light is termed as Raman Scattering and the cause of scattering is called the Raman Effect. The wavelength of these scattered rays is different from that of the incident rays of light.

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28 February: National Science Day

In India February 28 is celebrated as the National Science Day i.e. Rashtriya Vigyan Diwas (राष्ट्रीय विज्ञान दिवस) every year.

Significance of Day: It aims to impart scientific temper in the minds of people of all age groups.

The theme for year 2016 is “Scientific Issues for Development of the Nationthat aims at raising public appreciation.

This day is celebrated as science festival in the entire nation by organising science exhibitions, seminars, workshops, symposiums and many other activities.

Why National Science Day is celebrated?

  • This day marks the epoch-making discovery of Raman Effect by Indian physicist Chandrasekhara Venkata Raman (CV Raman) on February 28, 1928.
  • This discovery was awarded with the Nobel Prize in Physics in 1930.
  • In 2013, the American Chemical Society designated the ‘Raman Effect’ as an International Historic Chemical Landmark.

Background

In 1986, National Council for Science and Technology Communication (NCSTC) had demanded Union Government to assign February 28 as the ‘National Science Day’ for India. The first National Science Day was celebrated on February 28, 2000.

The Raman Effect: Some part of light beam after passing through a transparent medium gets scattered. This phenomenon of scattering of light is termed as Raman Scattering and the cause of scattering is called the Raman Effect. The wavelength of these scattered rays is different from that of the incident rays of light.

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