National Science Day 2023: Celebrated in India on February 28 to commemorate the discovery of the Raman effect by Indian physicist Sir Chandrasekhara Venkata Raman. He discovered the Raman effect on February 28, 1928 and for this discovery received the Nobel Prize in Physics in 1930.
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Greetings to the scientific community on National Science Day. His tireless pursuit of innovation has inspired a new generation of Indians to lead the world of technology and research.
The nation is proud of its scientists and their efforts to create a better future for India.
– Amit Shah (@AmitShah)
February 28, 2023
Indian Railways pays tribute to eminent scientist and Nobel laureate Sir CV Raman on #NationalScienceDay to commemorate the Raman Effect. pic.twitter.com/2rGEoDXCuP
— Ministry of Railways (@RailMinIndia)
February 28, 2023
CV Raman: biography
CV Raman or Chandrasekhara Venkata Raman was born on November 7, 1888 in Tiruchirappalli, South India. His father was a mathematics and physics teacher. From a young age he was exposed to an academic environment. His contribution to science and innovative research helped India and the world.
He discovered the Raman effect and won the Nobel Prize in Physics for his discovery. Every year on February 28, National Science Day is celebrated to pay tribute to Nobel laureate Dr CV Raman.
Name: Dr. Chandrashekhra Venkataraman or CV Raman
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Name: Dr. Chandrashekhra Venkataraman or CV Raman Born: November 7, 1888 Birthplace: Tiruchirappalli, Tamil Nadu Father’s name: R. Chandrashekhara Aiyer Mother’s name: Parvathi Ammal Spouse Name: Lokasundari Ammal Died on: November 21, 1970 Place of death: Bangalore, India Discovery: Raman effect Awards: Matteucci Medal, Bachelor Knight, Hughes Medal, Nobel Prize in Physics, Bharat Ratna, Lenin Peace Prize, Fellow of the Royal Society |
Dr. Chandrasekhara Venkata Raman (CV Raman): early life and family
Dr. CV Raman was born on November 7, 1888 in a South Indian Brahmin family in Tiruchirappalli, Tamil Nadu. His father’s name was Chandrasekhara Ramanathan Iyer, who was a professor of Mathematics and Physics at a university in Vishakhapatnam. His mother’s name was Parvathi Ammal.
CV Raman was an intelligent and brilliant student from his earliest childhood. At the age of 11 he passed the matriculation and at the age of 13 he passed the 12th grade with a scholarship. In 1902, he entered Presidency College and received his graduate degree in 1904. At that time, he was the only student who received the first division. He did his Masters in Physics from the same university and broke all previous records. In 1907, he married Lokasundari Ammal and had two sons, Chandrasekhar and Radhakrishnan.
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Dr. Chandrasekhara Venkata Raman (CV Raman): Career
Due to his father’s interest, he sat for the Financial Civil Services (FCS) exam and passed it. In 1907, he went to Calcutta (now Calcutta) and joined as Deputy Accountant General. But in his free time he went to the laboratory to carry out research at the Indian Association for the Cultivation of Sciences. Let us tell you that his work was very hectic and then he continued his research work at night due to his main interest in science.
Although the facilities available in the laboratory were very limited, he continued his research and published his findings in leading international journals like ‘Nature’, ‘The Philosophical Magazine’, ‘Physics Review’, etc. At that time, his research focused on the areas of vibrations and acoustics.
He had the opportunity to join the University of Calcutta in 1917, as the first Palit Professor of Physics. After 15 years in Calcutta, he became a professor at the Indian Institute of Sciences, Bangalore from 1933 to 1948, and from 1948 he became director of the Raman Research Institute, Bangalore, which was established and funded solely by him.
Dr. Chandrasekhara Venkata Raman (CV Raman): Works and Discovery
He established the Indian Journal of Physics in 1926, of which he was editor. He also sponsored the establishment of the Indian Academy of Sciences and served as its president from its inception. He was president of the Current Science Association in Bengaluru, which publishes Current Science (India).
In 1928, he wrote an article on the theory of musical instruments for the eighth volume of the Handbuch der Physik. He published his work on the “Molecular Diffraction of Light” in 1922, which led to his final discovery of the effect of radiation on February 28, 1928, and earned him the Nobel Prize in Physics in 1930. He became the first Indian to receive a Nobel Prize. .
Other research carried out by Dr. CV Raman were: Diffraction of light by acoustic waves of ultrasonic and hypersonic frequencies and effects produced by X-rays on infrared vibrations in crystals exposed to ordinary light.
In 1948, he also studied the fundamental problems of crystal dynamics. His laboratory has dealt with the structure and properties of diamonds, and with the structure and optical behavior of numerous iridescent substances such as pearls, agates, opals, etc.
He was also interested in colloid optics, electrical and magnetic anisotropy, and the physiology of human vision.
He was certainly honored with a large number of doctorates and memberships in scientific societies. In 1924, he was also elected a Fellow of the Royal Society early in his career and was knighted in 1929.
As briefly described, he is best known for discovering the ‘Raman Effect’ or the theory related to light scattering. He showed that when light passes through a transparent material, some of the deflected light changes its wavelength.
READ| List of important discoveries in physics
Dr. Chandrasekhara Venkata Raman (CV Raman): Awards and Honors
– In 1924, he was elected a Fellow of the Royal Society early in his career and was knighted in 1929.
– He won the Nobel Prize in Physics in 1930.
– He was awarded the Franklin Medal in 1941.
– He was awarded the Bharat Ratna in 1954, India’s highest civilian award.
– In 1957 he received the Lenin Peace Prize.
– The American Chemical Society and the Indian Association for the Cultivation of Science recognized Raman’s discovery as an International Chemical Historical Monument in 1998.
– On February 28 every year, India celebrates National Science Day to commemorate the discovery of the Raman Effect in 1928 in his honour.
In 1970, he suffered a serious heart attack while working in the laboratory. He breathed his last at the Raman Research Institute on November 21, 1970.
Dr CV Raman was one of the great legends of India whose hard work and determination made India proud and he became the first Indian to receive a Nobel Prize in Physics. He showed that, if a person really wants to pursue his desires, no one can stop him. His interest in science and his dedication to research work led him to discover the Raman Effect. He will always be remembered as a great scientist, physicist and Nobel Prize winner.
Also, read
National Science Day 2023: Wishes, greetings, messages, quotes and more to share on this day
National Science Day 2023: Five groundbreaking discoveries that changed the world
CV Raman Birth Anniversary: History, Significance and Achievements
Categories: Optical Illusion
Source: ptivs2.edu.vn