Friday, 21 September 2012

Sir Jagadish Chandra Bose



Sir Jagadish Chandra Bose



Born: November 30, 1858
Died: November 23, 1937 
Achievements: He was the first to prove that plants too have feelings. He invented wireless telegraphy a year before Marconi patented his invention. [1]

         Jagadish Basu's ancestral home was Rarikhal, in Munshiganj district, but he was born in Mymensingh on November 30, 1858. where his father was posted as a deputy magistrate. After obtaining a BSc. degree from St. Xavier's College in Calcutta, Jagadish Basu went on to Cambridge where he obtained a Tripos in Natural Sciences in 1894. He returned to India and joined the Presidency College Physics Department. Here, besides teaching, he carried on his original experiments on radio waves and later in plant physiology and biophysics. It was while he was carrying on experiments on the quasi-optical properties of very short radio waves in the Presidency College laboratories, that he made improvements on the coherer, an early form of radio detector, by attaching a mercury-filled tube and also connecting a telephonic receiver.[2]

            Jagadish Basu who had worked on properties of radio waves and perfected. An early form of radio detector- his mercurycoheter- was bypassed by Marconi, who had based his experiments an wireless telegraphy , on a further modification of Basu's coherer. Iii the process Basu's contribution was not acknowledged by Marconi who went on to per. fed his system, build a company based on his discoveries and inventions, and share the Nobel Prize with the German Karl Ferdinand Braun in 1909.[2]

            While Marconi received his recognition with the award of the Nobel Prize, the unacknowledged and now side-tracked researcher and innovator in radio waves and wireless telegraphy, the disillusioned Basu, turned his attention to physiology of plants. Here also his genius led him to invent highly sensitive instruments for detection of minute responses by living organisms to external stimuli and enabled him to anticipate parallelism between animal and plant tissues noted by later blophysicists. These instruments produced some striking results, such as Basus demonstration of an apparent power of feeling in plants, exemplified by the quivering of injured plants. Among his books on biophysics are Response in the Living and Non-Living (1902) and The Nervous Mechanism of Plants (1926). Jagdish Chandra Bose showed experimentally plants too have life. He invented an instrument to record the pulse of plants and connected it to a plant. The plant, with its roots, was carefully picked up and dipped up to its stem in a vessel containing bromide, a poison. The plant's pulse beat, which the instrument recorded as a steady to-and-fro movement like the pendulum of a clock, began to grow unsteady. Soon, the spot vibrated violently and then came to a sudden stop. The plant had died because of poison.[1][2]

           Although Jagdish Chandra Bose did invaluable work in Science, his work was recognized in the country only when the Western world recognized its importance. He founded the Bose Institute at Calcutta, devoted mainly to the study of plants. Today, the Institute carries research on other fields too. 
Reference:
1 = Jagdish Chandra Bose Biography
2 = Jagadish Chandra Basu, the low-profile genius
 By Mahbub Husain Khan

1 comment: