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Jagadis Chunder Bose
 
Mymensingh, India 30.November.1858- 23.November.1937
Detector crystal of Galena  (diode to galena)

  


Biographical notes


 

     
Bose was born in Mymensing, India (now Bangladesh) on November 30, 1858 in a wealthy family conditions.Frequenta l'università  St. He attended the University St.Xavier’s College, a Calcutta nel 1875 sino al '77. Xavier's College in Calcutta in 1875 until'77. In 1880 studying medicine at the University of London, but abandoned this option to have contracted an infection.  The following year he attended the Christ's College studying physics where he graduated in 1884.  Since 1885 is a professor of physics at the University of Calcutta and there remains the subsequent three decades, in a crescendo of popularity in the scientific world and to his students. During the period 1894-1900 Bose research and experiment with the radio waves up to 5 mm. Study galena crystals for use as tracers ahead of the semiconductor diode.
 Questi studi verranno ripresi dopo 60 anni dal mondo scientifico. After the 1900 is based on new research in the plant world (see note) and animal, in particular studying the sensitivity of plants and creates a purpose for that unit "Chrestograph" which amplifies the movement of the plant up to a million times. These studies will be taken up after 60 years by the scientific world. In 1915 is for the presidency of his university and will hold office for five years, in 1917 founded the Bose Research Institute in Calcutta.
      





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NOTE: SENSITIVITY OF PLANTS
 Early in the last century, the Indian Sir Jagadis Chunder Bose (1858-1937) said that the plants sleep, so tired, so depressed, they become euforiche with alcohol, excited or insensitive if absorb caffeine or chloroform. Records of Bose, revolutionary in his day, and even later, were, as often occurs for scientific discoveries, in the dust for many decades, when up to 60 years, a number of scholars from various parts of the world again and continued his studies.