National science day 2017 - feb 28

பிப்ரவரி 28: தேசிய அறிவியல் நாள்

இந்தியாவில் ஒவ்வொரு ஆண்டும் தேசிய அறிவியல் நாள் பெப்ரவரி 28 ஆம் 

தேதியன்று கொண்டாடப்பட்டு வருகிறது.

இந்திய மண்ணில் பிறந்து உலகம் போற்றும் வகையில் பல அரிய 

கண்டுபிடிப்புகளை ஆராய்ந்து வெளியிட்டவரும் சிறந்த இயற்பியல் 

மேதையுமான சர். சி. வி ராமன் தன்னுடைய நோபல் பரிசு பெற்ற "ராமன் 

விளைவு" ஆராய்ச்சி முடிவை வெளியிட்ட பிப்ரவரி 28 ம் தேதி தேசிய 

அறிவியல் தினம் என அறிவிக்கப்பட்டது

தேசத்தலைவர்கள் மற்றும் தியாகிகளைக் கொண்டாடுவது போல 

அறிவியல் மேதைகளும் போற்றப்பட வேண்டும் என்ற கருத்தின் 

அடிப்படையில் 1987 - ஆம் ஆண்டு இந்த தேசிய அறிவியல் நாள் இந்திய 

அரசால் அறிமுகப்படுத்தப்பட்டது.

ஒவ்வொரு ஆண்டும் ஒரு குறிக்கோளை அடிப்படையாக கொண்டு இந்நாள் கொண்டாடப்படுகிறது

National Science Day is celebrated in India on 28 February 

each year to mark the discovery of the Raman effect by 

Indian physicist Sir Chandrashekhara Venkata Raman on 28

 February 1928.

For his discovery, Sri C.V. Raman was awarded the Nobel 

Prize in Physics in 1930.

Themes of National Science Day

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.
• 
  
• Themes of National Science day

• The theme of the year 1999 was “Our Changing Earth”.
• The theme of the year 2000 was “Recreating Interest in Basic Science”.
• The theme of the year 2001 was “Information Technology for Science Education”.
• The theme of the year 2002 was “Wealth from Waste”.
• The theme of the year 2003 was “50 years of DNA & 25 years of IVF – The blue print of Life”.
• The theme of the year 2004 was “Encouraging Scientific Awareness in Community”.
• The theme of the year 2005 was “Celebrating Physics”.
• The theme of the year 2006 was “Nurture Nature for our future”.
• The theme of the year 2007 was “More Crop Per Drop”.
• The theme of the year 2008 was “Understanding the Planet Earth”.
• The theme of the year 2009 was “Expanding Horizons of Science”.
• The theme of the year 2010 was “Gender Equity, Science & Technology for Sustainable Development”.
• The theme of the year 2011 was “Chemistry in Daily Life”.
• The theme of the year 2012 was “Clean Energy Options and Nuclear Safety”.
• The theme of the year 2013 was “Genetically Modified Crops and Food Security”.
• The theme of the year 2014 was “Fostering Scientific Temper and Energy conservation”.
• The theme of the year 2015 was “Science for Nation Building”.
• The theme of the year 2016 was “Make in India: S&T driven innovations”.
• The theme of the year 2017 is “Science and Technology for specially abled persons”.