Jagadish Chandra Bose became a world leader in telecommunications. He is given the credit for invention of crescograph which is an instrument used for measuring growth in plants.

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Jagadish Chandra Bose- The Physicist

Jagadish Chandra Bose became a world leader in telecommunications. He is given the credit for invention of crescograph which is an instrument used for measuring growth in plants. He used his instrument for checking the effects of environment on vegetation. He proved the presence of life in plants.

Jagadish Chandra Bose was born on 30th November 1858 in Munshiganj, Bengal Presidency, British India and died on 23rd November 1937 in Giridih, Bengal Presidency, British India.


On 10th May 1901 in Royal Society in London, he demonstrated the life-altering experiment. In front of everyone, he went on to demonstrate how plants have feelings like any other human being. He took a plant dipped in bromide solution right up to its stem. Hydrobromic acid salts are considered to be poisonous in nature. He then plugged in his crescograph with the plants and the spot on the screen showed plant’s movements. Within few minutes, the spot on the screen vibrated and stopped. This showed how the plant had died because of bromide solution.

He used Crescograph to further show the effect of light rays, wireless waves and fertilizers on the plants. He even invented another instrument called Coherer which was used for the detection of radio waves. In 1902, he wrote a book titled ‘Response in the living and non-living’. In 1926, he wrote another book titled ‘The Nervous Mechanism of Plants’.


Ø  1903- Companion of the Order of the Indian Empire

Ø  1912- Companion of the Order of the Star of India

Ø  1917- Knight Bachelor

Ø  1920- Fellow of the Royal Society

Ø  1928- Vienna Academy of Sciences- membership

Ø  1927- 14th session of Indian Science Congress- served as President

Ø  1929- Finnish Society of Sciences and Letters- membership

Ø  League of Nations’ Committee for Intellectual Cooperation- member

Ø  National Institute of Sciences of India- founding member


Ø  The stories he heard during his childhood made him take an interest in nature and its studies.

Ø  Despite poverty, his father always gave credit to studies and encouraged him to become a scholar. He left his home at 18 to study at Christ’s College in Cambridge related to natural science.

Ø  Owing to the growing rise of influence of British over Indian education, Bose often faced denial of access to the laboratories in the University of Calcutta. He served there as a Professor of Physics and yet was not permitted in labs because of his race. He continued his experiments in his own home without proper scientific equipment. Nothing deterred him from his path.

Ø  Despite having interest in natural science, Bose played a key role in creating sonic technology and modern radio. He is said to have brought wireless communication into existence. He made inventions in the field and brought remote wireless technology to life. He could have earned a lot of money if he had patented his work. But, he shared his inventions with the world so that others could use this technology and research to expand further. He was termed ‘Father of Radio Science’ in 1997 by Institute of Electrical and Electronic Engineers.

Ø  He invented crescograph which helped the scientists in determining the effect of seasons and external stimulus on the plants and their life. He worked hard for determining the effect of chemical inhibitors, light and temperature on the growth of plants. He was a nature lover who encouraged humans to take care of plants and said that plants have a life like humans and experience pain and affection like us too.

Ø  On 25th June 2009, the Indian Botanic Garden was renamed as Acharya Jagadish Chandra Bose Indian Botanic Garden to pay him regard.

Ø  In order to honour his work, there is a crater on moon dedicated to him. The Bose Crater is a small impact crater which lies on the far side of the Moon with worn edges. It was a diameter of 91 kilometres.

Ø  He is known for inventing Mercury Coherer which was later used by Guglielmo Marconi for building a radio. Bose was the first one to demonstrate the capturing of radio waves. Again, he never made his inventions private and made his research work public for others to make advancements on.

Ø  He wrote a book titled ‘Polatok Toofan’ which explains the use of hair oil in averting a cyclone. The book describes the water retention ability of oil after changing the surface tension.

Ø  He even wrote another book titled ‘Niruddesher Kahini’, which is known for being the first Bengali science fiction.

Ø  Jagadish Chandra Bose served as a teacher to Meghnad Saha and Satyendra Nath Bose.

Ø  He is known to send an electromagnetic wave by passing it through walls for ringing a bell and exploding gunpowder.