National Science Day: With the help of science, humans have created many ways to improve their lives, through science we have invented new types of technologies.
Also, know how many techniques and things we use with the help of science. Not only this, but we have also succeeded in making impossible things possible.
With the help of science, we have been successful in taking things like robots and computers to space. In this situation, science is very important in our lives and this subject is taught to children in every school.
India has contributed a lot in the field of science. Many great scientists have been born on the land of India and due to the transformation of these great scientists, India has made its science in the field of science all over the world.
The discovery of Raman Effect Indian scientist Dr Raman Singh had celebrated the day of February 28, many years before today, to commemorate this day, announcing 28 February as Science Day every year.
Since then, we have been celebrating National Science Day on 28 February. We have compiled all the information about National Science Day, its history, its purpose and National Science Day in 2020.
Why do we celebrate National Science Day?
The day of 28 February 1928 was a great day in Indian history because on this day National Scientist Dr Chandrasekhar Raman made the special invention.
He was a Tamil Brahmin and the first person to do any research work in India. From 1907- 1933, Dr Raman worked in the Indian Association of the Cultivation of Science, Kolkata.
During this, he did research work on many subjects. In which his discovery, known as the Raman Effect, became a special discovery.
What is the Raman Effect in simple words?
When photons are incident on a substance, then these photons collide with this material and it is dispersed, that is, these photons spread or disintegrate in different directions.
The energy of most photons spread or amplified in different directions was found to be the same as that of the incident photon.
So the energy or frequency and wavelength of most photons remained the same as that of the incident photon, but out of about 10 million photons, one photon was found.
The energy after scattering is reduced or increased, that is, after scattering, the energy of photon is changed, that is, the energy of incident photon and scattered photon.
The energy obtained is different, such photon whose value of incident energy and radiated energy is changed, such photon is called Raman scattering photon and this effect is called Raman effect.
Note: Remember, energy conversion here means a change in frequency and wavelength of the photon.
Thus, the Raman Effect can be defined as:
“Light is transmitted by impinging light on liquids such as benzene, toluene etc., in the spectrum of the light transmitted, the lines of some lesser or greater frequency than incident light are obtained, This effect is called Raman effect.”
Remember that when light is dispersed by fluid, most photons are transmitted with the same frequency that they are incident on the fluid, but about 1 million photons have 1 photon whose frequency changes in scattering and incidence.
That is, the frequency of photons of incident light and the frequency of photons of reflected light are different. This phenomenon is called the Raman Effect.
This effect was discovered in 1928 in CV by CV Raman and KK Krishnan.
For this efforts, he was awarded various awards and in 1930 he was also awarded the Nobel Prize.
On 28 February, National Science Day was declared by the National Council for Science and Technology Communication in the year 1986 to always remember his efforts in the future.
The day is celebrated by students, teachers, scientists and researchers in all schools, colleges and educational institutions including scientific, educational, medical, technical and research institutes of India.
The objective of National Science Day:
Every year in India, this day is celebrated on 28 February. The main purpose of celebrating this day is to create awareness among people about science.
Not only this, but children are also encouraged to choose their career as science through this day. So that the coming generation of our country can contribute to the field of science and make progress in our country.
One of the main objectives of declaring this day as National Science Day was Dr Chandrasekhar Raman and his invention of Raman influence were to be respected, besides many other objectives which are as follows.
The importance of various scientific inventions in our daily life is also an important purpose of celebrating this day.
Demonstrating all activities, efforts and achievements in the scientific field for human welfare and progress is also included in the objectives of celebrating this day.
For science and scientific development, all issues are discussed on this day and new techniques are also applied on this day.
There are many people in the country who have a scientific nature, giving these people a chance and encouraging them for their work is also an aim to celebrate this day.
National Science Day 2020:
This year too, we will be celebrating National Science Day on 28 February.
This day was announced in 1986 and it was first celebrated in the year 1987, so this year it will be the 32nd National Science Day, which we will celebrate with pride.
This year the theme of this day will be “Science for the people and science for the people”.
National Science Day Theme:
However, National Science Day has been celebrated since the year 1987, here we are aware of the topic of this day from 2011 to 2019:
|1||2011||Chemistry in daily life|
|2||2012||Clean energy options and nuclear power|
|3||2013||Genetically modified crops and food security|
|4||2014||Promote scientific temperature and energy conservation|
|5||2015||Science of nation-building|
|6||2016||Make in India; S&T Driven Innovation|
|7||2017||Science and technology specifically for the disabled|
|8||2018||Science and technology for a sustainable future|
|9||2019||People for science and people for science|
National Science Day Activities:
To make this day special, many types of preparations are made by the Ministry of Science and Technology, Government of India.
On this day, a variety of programs, science projects and competitions are organized by children in schools and colleges in India and children participate well in these programs.
Not only this, but children are also given information about science so that children can make a career in this subject.
Many types of programs are organized on radio and TV on this day. Science is discussed in these programs.
Apart from this, scientists are also invited to science-related colleges, so that they can share their experience with college students.
World Science Day for Peace and Development:
World Science Day is celebrated on November 10 all over the world for peace and development. On this day, a variety of seminars are held around the world.
Not only this, but people are also told about the benefits related to science on this day. This day was first celebrated in the year 2002. At the same time, this day is celebrated every year.