You might be aware that 28th February is celebrated as National Science Day in India but do you know why and for what the day is celebrated as National Science Day. I am also sure you must have heard about celebrated Indian Scientist Sir Chandrasekhara Venkata Raman. On this day in 1928, he discovered a phenomenon of scattering of photons which was later known as ‘Raman Effect’ after his name. After two years in 1930, he got Nobel Prize for this remarkable discovery and this was the first Nobel Prize for India in the field of Science. To mark the discovery his famous phenomenon National Science Day is celebrated in India on the day each year.
When was the day declared as National Science Day?
In 1986, the National Council for Science and Technology Communication (NCSTC) asked the Government of India to designate 28 February as National Science Day which the then Govt. of India accepted and declared the day as National Science Day in 1986. The first National Science Day was celebrated on February 28, 1987.
What is Raman Effect?
Raman Effect is a phenomenon in spectroscopy discovered by the eminent physicist while working in the laboratory of the Indian Association for the Cultivation of Science, Kolkata.
Raman Effect, change in the wavelength of light that occurs when a light beam is deflected by molecules. When a beam of light traverses a dust-free, transparent sample of a chemical compound, a small fraction of the light emerges in directions other than that of the incident (incoming) beam. Most of this scattered light is of unchanged wavelength. A small part, however, has wavelengths different from that of the incident light; its presence is a result of the Raman Effect.
Purpose of the Celebration:
The basic objective of observation of National Science Day is to spread the message of importance of science and its application among the people. National science day is celebrated as one of the main science festivals in India every year with following purpose-
- To widely spread a message about the significance of scientific applications in the daily life of the people,
- To display all the activities, efforts and achievements in the field of science for welfare of human being,
- To discuss all the issues and implement new technologies for the development of the science,
- To give an opportunity to the scientific minded citizens in the country,
- To encourage the people as well as popularize the Science and Technology.
Activities on the Day:
Students of the schools and colleges demonstrate various science projects as well as national and state science institutions demonstrate their latest researches. The celebration also includes public speech, radio-TV talk shows, exhibitions of science movie, science exhibition based on themes and concepts, watching night sky, live projects and researches demonstration, debates, quiz competitions, lectures, science models exhibitions and many more activities.
Theme of National Science Day 2015
‘Science for Nation Building’
Theme of National Science Day 2014
‘Fostering Scientific Temper’ and ‘Energy conservation’
Theme of the year 2013 was ‘Genetically Modified Crops and Food Security’