Tuesday, June 18, 2024
A MESSIAH OF THE MASSES
Monday, June 17, 2024
REMEMBERING THE SUPERHERO OF OUR LIFE
Sunday, June 16, 2024
INSTRUMENT THAT FACILITATES COMMUNICATION
Saturday, June 15, 2024
JOURNEY INTO LIGHT
Raman Effect
Early Life: Chandrasekhar Venkata Raman was born on 7 November, 1888 at Tiruchirappally in the Madras Presidency (Tamil Nadu). He was the second child of Parvati Amma and Chandrasekhar Iyer, a lecturer in Physics and Mathematics. Raman was a brilliant student. He completed his BA from Presidency College, Madras at the age of 15. He graduated with honours, winning a gold medal in Physics. He completed his MA with distinction from the same college when he was hardly 18.
Raman topped the Civil Service competitive examination and in 1907, he was posted as Assistant Accountant General in Calcutta.
One day, while travelling to his office by tram, he noticed a signboard on a building that said, ‘Indian Association for Cultivation of Science’ (IACS). It was a private science institute established by Mahendralal Sircar. He got down from the tram and obtained permission to work there. The institute later became the springboard for his groundbreaking research.
The institute had many unused scientific apparatus. Using these instruments, Raman started working on various problems in sound and light without any guidance. He followed a gruelling schedule; he would reach the institute everyday by 5.30 am, work till 9.30 am, go home for a quick meal and then go to his office. He would be back at the institute by 5 pm and return home only by 10. He would spend the entire Sunday at the laboratory. Soon Raman started to publish high-quality research papers in international journals and became famous in the scientific world.
In 1917, Raman resigned from his well paying government job to become the first Palit Professor of Physics (a highly respected teaching post) at the Calcutta University. At the same time, he continued working at IACS. Students flocked to work under him, drawn by his fame and brilliance.
The Blue Sea: In 1921, he sailed to London to represent his university at the Assembly of Universities. While returning by steamer, Raman was fascinated by the deep blue colour of the Mediterranean Sea. Lord Raleigh (a Physics Nobel laureate) had already established that the blue colour of the sky was due to the scattering of light by air and dust molecules in the atmosphere. The blue component of light gets scattered the most, giving the sky its characteristic blue colour. Scientists explained that the blue colour of the sea was simply the reflection of the blue sky in the water.
Raman refused to accept the explanation. He conducted some simple experiments on board using a nicol prism and showed that the blue colour of the sea was caused by the scattering of sunlight by the water molecules.
Effect-ive discovery: Raman continued his light-scattering studies with different liquids using his homemade equipment in the IACS labs. Using optical filters, Raman passed a strong light beam of a single colour through a liquid and observed the light scattered by the liquid through a spectrograph. His studies yielded an unexpected result. A very small portion of the deflected light actually changed colour from the original light. This phenomenon was later named Raman effect. The change in colour of the scattered light was indicative of the molecule which scattered the light and thus became a tool to understand that molecule.
Raman made his discovery on 28 February, 1928. Two years later, he was awarded the Nobel Prize in Physics, making him the first Indian and non-white to receive a Nobel Prize in science.
India observes National Science Day on 28 February to honour Raman’s discovery. Dr. G. Venkataraman’s biography of Sir C. V.Raman is aptly titled Journey into Light.
Raman also studied X-Ray scattering and published papers in the field of musical instruments. Many awards and recognition came his way. He was elected as Fellow of the Royal Society in 1924, knighted in 1929 and was awarded the Franklin medal in 1942.
Raman joined the Indian Institute of Science in Bangalore in 1934 as its first Indian director. In 1949, he established the Raman Research Institute. He continued to teach and mentor students till he passed away in 1970.
When Raman was invited to Rashtrapati Bhavan to receive the Bharat Ratna on 27January, 1955, he wrote to the then Indian President Dr. Rajendra Prasad, expressing his inability to attend the function. He said he was busy supervising the thesis of his student and he thought that the job of mentoring his student was far more important than being present for the award function!
Friday, June 14, 2024
DO YOU KNOW
Thursday, June 13, 2024
FIRST PASSENGER TRAIN OF INDIA
Great Indian Peninsula Railway
By 3:30 in the afternoon all the lucky people - both ladies and gentlemen, Indian and Europeans - who had been invited to travel in the train were comfortably ensconced in their seats and were raring to go. Then a royal salute was fired from the ramparts of Fort St. George and the 14-coach train, pulled by three steam engines gave a shrill whistle and surged forward much to the awe and amazement of those left behind on the platform.
All along the way, people watched and cheered from windows and rooftops and tops of trees as the iron wonder puffed and chugged and whistled its way out of the city and snaked through the countryside to its final destination, Tanna (now Thane), 34 kilometers away. The journey took about an hour. Bombayites talked of nothing else but their train over the next few weeks.
That first train which carried about 500 passengers set in motion, literally, the wheels of the Indian Railways which today carries 24 million passengers daily and is one of the world's largest railway networks.
Wednesday, June 12, 2024
THE KING OF SILENT COMEDY
Charlie Chaplin
Sir Charles Chaplin, popularly called Charlie Chaplin, was a prolific British actor, director and writer and one of the greatest comic artists of all time. He was born in 1889 in London to an alcoholic father and a mentally ill mother. He began performing on stage from the age of five (his parents were singers), which helped him overcome the hardships he faced as a child. While touring in the US in 1913, he got film offers and he began his celebrated career in Hollywood.
Chaplin is best loved for his character ‘The Tramp’. He wore a battered bowler hat, ill-fitting clothes and a toothbrush moustache and carried a walking stick. The character first appeared in short films in 1914 and then in the 1915 feature film 'The Tramp'. People loved it—a downtrodden character with odd mannerisms and unlucky in love, but nevertheless a survivor.
Most of Chaplin’s films are richly comic yet poignant. They entertain and also raise deeper social and philosophical questions. A wonderful example of this is 'The Kid' (1921), Chaplin’s directorial debut. It depicts the relationship between the Tramp and his adopted son John (played by five-year old Jackie Coogan). The most autobiographical of Chaplin’s movies, it shows elements of his unhappy childhood. He began filming it just weeks after losing his three-day old son. His attempts to coach Coogan and bond with him, taking him out for picnics and pony rides, helped him to overcome his loss.
Another noteworthy silent film was "The Gold Rush'. Its most iconic scene depicts the Tramp as being so hungry that he boils and eats his own shoe!
When silent films gave way to the talkies in the 1930s, Chaplin initially bucked the trend—he produced 'City Lights' and 'Modern Times' without dialogue. His first sound film was 'The Great Dictator' (1940), a spoof on German dictator Hitler. For the film, Chaplin received his only Oscar nomination as best actor.
Chaplin moved to Switzerland in 1953 as he had political differences with the US government. He returned only in 1972 to receive an honorary Oscar.
Chaplin’s Last Words: Chaplin died on Christmas in 1977 after getting a stroke. As he lay on his deathbed, the priest read him his last rites and ended with “May God have mercy on your soul.” Chaplin responded, “Why not? After all, it belongs to Him.”
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