(a) Jadavpur Ulu 2XU Answer the following questions : What did Bose's mother do when he returned home from school with his schoolmates? AHS. How did Eug
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Explanation:
1937In a large forest the trees shed their dry leaves one by one in profusion thus making the soil underneath fertile. In a country where there is continuous research in science, knowledge of it in fragmentary bits is being spread constantly. This is how one’s heart’s soil is quickened, becoming fertile with an alive feeling in science. It is the loss of it that has left our mind unscientific. We feel the impoverishment not only in our education, but also in the field of our occupation where we are bowed with frustration.” Rabindranath Tagore in ‘ Bishwa-Parichaya’ quoted from its English version titled “Our Universe” translated by Indu Dutt. “If there was been any success in my life that was built on the unshakable foundation of failure…” “Bose was a physicist and a physicist he remained in his outlook to the very end.” Meghanad Saha “The generally accepted interpretation of Jagadis Chandra’s scientific activities is that he had essentially the biologist’s conception of Nature; lack of opportunities for biological studies while as a student in Calcutta and later lack of any teaching post in biology, induced Jagadis Chandra to take up the post of teacher in physics….” D.M. Bose He (Bose) was modern India’s first physicist after all, one of her very first scientists. He was his motherland’s first active participant in the Galilean - Newtonian tradition. He had confounded the British disbeliever. He had shown that the Eastern mind was indeed capable of the exact and exacting thinking demanded by western science. He had broken the mould. S. Dasgupta in “Jagadis Chandra Bose and the Indian Response to Western Science”. Jagadis Chandra Bose, popularly known as J.C. Bose, occupies a unique position in history of modern Indian science. He is regarded as India’s first modern scientist. But then it is also true that Bose was not the only pioneer of modern Indian science. Prafulla Chandra Ray (1861-1944), who established an Indian school of chemistry and a chemical industry, and Srinivasa Ramanujan (1887- 1920), the great mathematician, are equally familiar names in the annals of modern history of Indian science and who were Bose’s contemporaries. It was Ramanujan, who was first elected as Fellow of the Royal Society, the ultimate recognition given by the British Scientific establishment. But then as one of Bose’s biographers, Subrata Dasgupta, writes : “Bose was the first Indian to be admitted in person to the sanctum sanctorum of English, thus western science”. In January 1897 Bose delivered a lecture at the Royal Institution, London, a Friday Evening Discourse, then most prestigious and visible platform for announcing new discoveries. It was Michael Faraday (1791-1867) who started the Friday Evening Discourse in 1826. Some of the most prominent British scientists worked in the Royal Institution and participated in these discourses. In this lecture Bose demonstrated his devices for the generation and detection of radio waves. Bose did pioneering research, first in physics and then in physiology. In 1888 Heinrich Rudolf Hertz (1857-94) produced and detected electromagnetic waves in the 60 cm wavelength range and in doing so he verified James Clerk Maxwell’s (1831-79) electromagnetic theory. However, Bose was the first to produce millimeter-length radio waves and study their properties. Bose also perfected the method of J.C. Bose Dream 2047 CMY transmission and of reception of electromagnetic waves. In recent years there has been welcome news of proper credit being given to Bose for his pioneering work in the area of wireless telegraphy. The Institute of Electrical and Electronics Engineers (IEEE) in one of their publications wrote : “ Our investigative research into the origin and first major use of solid state diode detector devices led to the discovery that the first transatlantic wireless signal in Marconi’s world-famous experiment was received by Marconi using the ironmercury-iron-coherer with a telephone detector invented by Sir J.C. Bose in 1898.” Bose was a pioneer in microwave optics technology. He was the first to show that semiconductor rectifiers could detect radio waves. Bose’s galena receiver was amongst the earliest examples of a lead sulphide photo conducting device.clique aqui