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19 May 2014

ஜகதீஷ் சந்தர போஸ் (1858-1937),

SIR JAGDISH CHANDRA BOSE
(Who established similarities between plants and animals)













Sir J.C. Bose was the first Indian scientist who proved experimentally that both animals and plants have a great deal in common. He proved that planets are also sensitive to heat , cold, light , noise and other external stimuli. he designed a very sensitive instrument called crescograph which was capable of recording and detecting the minute responses due to external stimulants. It could magnify the movement of plant tissuses to about 10000 times of their original size. This instrument helped him to estabilish many similarities between plants and other living beings.




On May 10, 1901, the hall of the Royal Society in London was packed with eminent scientists. All were curious to see J.C.Bose's experiment to prove that plants have feelings like humans. Bose took a plant whose roots were carefully dipped up to its stem in a vessel containing the bromide solution. Bromide is a poison. He connected his instrument to the plant and looked at the lighted spot on a screen indiating the movements of the planet. The planet's pulse beat, and the spot started moving to and fro like a pendium. Soon , the spot vibrated violently and then ame to a sudden stop. Its condition was almost like a poisioned rat struggling against death. The plant had died because of the poison.




The experiment was greeted with thunderous claps, but some physiologists were not happy, because Bose being a physicist was an intruder into their field. They criticised his experiment, but he was a person not to accept defeat easily because he was sure about his own conviction.




With his crescograph, Bose studied the response of the plants to fertilizers, light rays abd wireless waves. His instrument was much praised in the Paris Congress of Science in 1900 . Later many physiologists orroborated his findings with the help of more sophisticated instruments.




This great scientist was born on 30th November, 1858 at Mymensingh, now in Bangladesh. He was brought up in a home devoted to Indian traditions and culture. He used to read Mahabharata and Ramayana regularly. He was very much inspiered by the character of  Kama, who struggled  throughtout his life to achieve success, He strongly believed that true success is born out of defeat.

When he was studying in St.xavier school in Calutta University , he found himself to be the only student from a village among European and Anglo- Indian boys. They used to make fun of him. One of  them, a champion boxer, tried to bully young jagdish. Oneday , when Bose was unable to tolerate the bullying, he fought with that boy and gave him a through beating. Thereafter, no one dared to tease him.


After studying physics at Calcutta University, he went to Cambridge. In 1884 he came back to India with the B.Sc. degree from Cam bridge University. He was offered a lecturership at Presidency College in Calcutta on a salary two thirds the salary of European lecturer. Bose being a man  of high self - respect, did not daw any salary for three years, He believed that Indians were in no way intellectually inferior to the Europeans. In the end, the victory was his. He was paid full salary from the date of joining.


Bose was the author of two world famous books entitled 'Response in the Living and Non-Living' (1902) and 'The Nervous Mechanism of Plants' (926)




Bose did a lot of work on radio-waves. Though he was more famous as a plant physiologist, he was basically a physicst. He developed another instrument called'coherer' for the detection of radio-waves. Before his death in 937, he founded the Bose Institute at Calcutta in which researches are conducted on severeal subjects. For his outstanding contributions, he was elected the Fellow of the Royal society in 1920.
went to Cambridge.