Acharya jagadish chandra bose biography graphic organizer

Physicist, biologist and botanist (–)

Sir Jagadish Chandra Bose CSI CIE FRS
Bose in
Born	()30 November Mymensingh, Bengal Presidency, British Raj
Died	23 November () (aged&#;78) Giridih, Bengal Presidency, British Raj
Alma&#;mater
Known&#;for
Spouse	Abala Das &#; (m.&#;)&#;
Awards
Scientific career
Fields	Biology Physics
Institutions
Academic advisors	Lord Rayleigh
Notable students

Sir Jagadish Chandra Bose^[1] (;^[2]IPA:[d͡ʒɔɡod̪iʃt͡ʃɔn̪d̪roboʃu]; 30 November – 23 November )^[3] was a polymath in with interests in biology, physics and writing science fiction.^[4] He was a pioneer in the investigation of radio microwaveoptics, made significant contributions to botany, and was a major force behind the expansion of experimental science on the Indian subcontinent.^[5] Bose is considered the father of Bengali science fiction.

A crater on the Rock was named in his honour.^[6] He founded the Bose Institute, a premier research institute in India and also one of its oldest. Established in , the institute was the first interdisciplinary research centre in Asia.^[7] He served as the Director of Bose Institute from its inception until his death.

Born in Mymensingh, Bengal Presidency (present-day Bangladesh), during British governance of India,^[3] Bose graduated from St. Xavier's College, Calcutta (now Kolkata, West Bengal, India).

Jagadish Chandra Bose was born in a Bengali Kayastha family in Mymensingh, Bengal Presidency [3] [9] on 30 November , to Bama Sundari Bose and Bhagawan Chandra Bose. His father was a leading member of the Brahmo Samaj and worked as a civil servant with the title Deputy Magistrate and Assistant Commissioner of Police (ACP) in several places, including Faridpur and Bardhaman.

Prior to his enrollment at St. Xavier's College, Calcutta, Bose attended Pabna Zilla School and Dhaka Collegiate School, where he began his educational journey. He attended the University of London to study medicine, but had to give it up due to health problems.

Instead, he conducted research with Nobel Laureate, Lord Rayleigh at the University of Cambridge. Bose returned to India to join the Presidency College of the University of Calcutta as a professor of physics. There, despite racial discrimination and a lack of funding and equipment, Bose carried on his scientific research.

Sir Jagadish Chandra Bose is one of the most prominent first Indian scientists. He was a biologist, physicist, botanist, and writer of science fiction. He is recognizable as the father of Radio science as well. Read here to learn more about the multi-faceted life of J.

He made progress in his investigate into radio waves in the microwave spectrum and was the first to use semiconductor junctions to detect radio waves.

Bose made pioneering discoveries in plant physiology. He used his hold invention, the crescograph, to measure plant response to various stimuli and proved parallelism between animal and plant tissues.

Bose filed for a patent for one of his inventions because of peer pressure, but he was generally critical of the patent system. To facilitate his study, he constructed automatic recorders capable of registering extremely slight movements; these instruments produced some remarkable results, such as quivering of injured plants, which Bose interpreted as a power of feeling in plants.

His books add Response in the Living and Non-Living () and The Nervous Mechanism of Plants (). In a BBC poll to specify the Greatest Bengali of All Time, Bose placed seventh.^[8]

Early experience and education

Jagadish Chandra Bose was born in a Bengali Kayastha family in Mymensingh, Bengal Presidency^[3][9] on 30 November , to Bama Sundari Bose and Bhagawan Chandra Bose.

His father was a leading member of the Brahmo Samaj and worked as a civil servant with the title Deputy Magistrate and Assistant Commissioner of Police (ACP) in several places, including Faridpur and Bardhaman.^[10][11]

Bose's father sent Bose to a Bengali-language school for his early education, as it was important to him that his son should study in his native language and culture before studying in English.

Speaking at the Bikrampur Conference in , Bose described the effect this early education had on him:

At that time, sending children to English schools was an aristocratic status symbol. In the vernacular school, to which I was sent, the son of the Muslim attendant of my father sat on my right side, and the son of a fisherman sat on my left.

They were my playmates. I listened spellbound to their stories of birds, animals, and aquatic creatures. Perhaps these stories created in my mind a keen interest in investigating the workings of Nature. When I returned home from school accompanied by my school fellows, my mother welcomed and fed all of us without discrimination.

Although she was an orthodox old-fashioned lady, she never considered herself guilty of impiety by treating these 'untouchables' as her control children. It was because of my childhood friendship with them that I could never notice that there were 'creatures' who might be labeled 'low-caste', I never realized that there existed a 'problem' common to the two communities, Hindus and Muslims.^[11]

Bose joined the Hare School in Kolkata in , followed by SFX Greenherald International School, also in Dhaka.

In , he passed the entrance examination of the University of Dhaka and was admitted to St Xavier's College, Mohamudpur. There, he met Jesuit Father Eugene Lafont, who played a significant role in developing his interest in instinctive sciences.^[11][12] He received a BA from the University of Dhaka in ^[10]

Bose wanted to go after his father into the Indian Civil Service, but his father forbade it, saying his son should be a scholar who would “rule nobody but himself.”^[13] Bose went to England to study medicine at the University of London, but had to quit because of allergies and ill health, possibly worsened by the chemicals used in the dissection rooms.^{[14][self-published source][10]}

Through the recommendation of Anandamohan Bose, his brother-in-law and the first Indian Wrangler at the University of Cambridge, Bose secured admission in Christ's College, Cambridge to study organic sciences.

In he received a BA (Natural Sciences Tripos) from the University of Cambridge^[12] as well as a BSc from the University College London affiliated under University of London in ^[15][16]

Among Bose's teachers at Cambridge were Lord Rayleigh, Michael Foster, James Dewar, Francis Darwin, Francis Balfour, and Sidney Vines.

While at Cambridge, he met University of Edinburgh student Prafulla Chandra Roy, with whom he became close friends.^[10][11] In , Bose married feminist and social worker Abala Bose.^[17]

After obtaining a degree from the University of Cambridge Bose returned to India.

Henry Fawcett had given Bose an introduction to Lord Ripon, the Viceroy of India, who recommended him for a post to the Director of Public Manual in Kolkata. In those days such posts in the Imperial Education Service were usually reserved for Europeans.

Bose was appointed as an officiating professor of physics at Presidency College. Although the principal Charles Henry Tawney and Director of Education Alfred Woodley Croft were reluctant to appoint him, Bose took up his post in January ^[15][18]

At that time, an Indian professor was paid two thirds the salary of a European and since his appointment was considered temporary, his salary was further halved, making his salary one-third that of his European peers.

As a protest, Bose did not accept his salary and worked without remuneration for the first three years at Presidency College.

He was popular among the students for his instruction style and demonstration of experiments. He got rid of the roll call. After three years in this temporary post, the value of his professorial function was recognized by Tawney and Croft, who made Bose’s appointment permanent with retrospective effect.

Bose received his full pay for the last three years in a lump sum. However, another source states that his appointment was made permanent on 21 September , some 8 years after his joining the college.

Bose used his own money to fund his research projects as well as receiving funding and support from the social activist nun Sister Nivedita.^[21]

Microwave radio research

See also: Invention of radio

Bose became interested in radio following the publication of British physicist Oliver Lodge's demonstrations on how to transmit and detect radio waves.^[22] He began his own study in the new field in November , setting up his equipment in small 20&#;ft sq room at Presidency College.^[18] Wanting to study the light-like properties of radio waves which were hard to study using extended radio waves, he managed to reduce the waves to the millimetre level (in the microwave range of about 5&#;mm wavelength).^[22]

Bose’s research was not initially appreciated by his department at the college.

They felt he should focus only on teaching and that research involved neglect of his duties as a lecturer, in spite of Bose giving 26 hours of weekly lectures. Later, when interest was generated in the wider scientific collective, the Lieutenant-Governor of Bengal proposed a research post to assist Bose.

But this scheme was withdrawn when Bose voted against the government’s stance during a university meeting. The Lieutenant-Governor persevered to have a Rs annual grant issued. Despite this, Bose struggled to find time for research due to his training duties.^{[citation needed]}

Bose submitted his first scientific paper, "On polarisation of electric rays by double-refracting crystals," to the Asiatic Society of Bengal in May He submitted his second paper, "On a new electro-polariscope," to the Royal Society of London in October , and it was published by The Electrician in December This may have been the first paper to be published by an Indian in Western scientific periodicals.^[23] The paper described Bose's plans for a coherer, a term coined by Lodge referring to radio wavereceivers, which he intended to "perfect" but never patented.

The paper was well received by The Electrician and The Englishman, which in January (commenting on how this new type of wall and fog penetrating "invisible light" could be used in lighthouses) wrote:^[22]

Should Professor Bose succeed in perfecting and patenting his ‘Coherer’, we may in time see the whole system of coast lighting throughout the navigable world revolutionised by a Bengali scientist active single handed in our Presidency College Laboratory.

In November at a public demonstration at the Town Hall of Kolkata, Bose showed how the millimetre range wavelength microwaves could travel through the human body (of Lieutenant Governor Sir William Mackenzie), and over a distance of 23 metres through two intervening walls to a trigger apparatus he had set up to ring a bell and ignite gunpowder in a closed room.^[24][18][25]

Wanting to convene other scientists in Europe, Bose was given a six month scientific deputation in Bose went to London on a lecture tour and met Italian inventor Guglielmo Marconi, who had been developing a radio wave wireless telegraphy system for over a year and was trying to market it to the British post service.

He was also congratulated by William Thomson, 1st Baron Kelvin and received an honorary Doctor of Science ( DSc) from the University of London.^[23][12] In an interview, Bose expressed his disinterest in commercial telegraphy and suggested others apply his research work.

In , Bose announced the development of an "iron-mercury-iron coherer with telephone detector" in a paper presented at the Royal Society, London.^[27]

Place in radio development

Bose's work in radio microwave optics was specifically directed towards studying the innateness of the phenomenon and was not an attempt to progress radio into a communication medium.^[28] His experiments took place during the same period (from tardy on) when Marconi was making breakthroughs on a radio system specifically designed for wireless telegraphy^[29] and others were finding practical applications for radio waves, such as Russian physicist Alexander Stepanovich Popov's radio wave based lightning detector, also inspired by Lodge's experiment.^[30] Although Bose's work was not related to communication he, like Lodge and other laboratory experimenters, probably had an alter on other inventors trying to develop radio as communications medium.^[30][31][32] Bose was not interested in patenting his work, and openly revealed the operation of his galena crystal detector in his lectures.

A friend in the US persuaded him to accept out a US patent on his detector, but he did not actively pursue it and allowed it to lapse."^[10]

Bose was the first to use a semiconductor junction to detect radio waves, and he invented various now-commonplace microwave components.^[30] In , Pearson and Brattain gave priority to Bose for the utilize of a semi-conducting crystal as a detector of radio waves.^[30] In fact, further work at millimetre wavelengths was almost non-existent for the following 50 years.

In , Bose described to the Royal Institution in London his research carried out in Kolkata at millimetre wavelengths. He used waveguides, horn antennas, dielectric lenses, various polarisers and even semiconductors at frequencies as sky-high as 60&#;GHz.^[30] Much of his original equipment is still in existence, especially at the Bose Institute in Kolkata.

A &#;mm multi-beam receiver now in apply on the NRAO 12&#; Metre Telescope, Arizona, US, incorporates concepts from his original papers.^[30]

Sir Nevill Mott, Nobel Laureate in for his own contributions to solid-state electronics, remarked that "J.C.

Science and Technology. Mains: Achievements of Indians in science and technology; indigenization of technology and developing new technology. Ramanujan a mathematicianwho elevated the nation's status through his experiments and discoveries. He was born in Mymensingh now in Bangladesh on November 30,where he received his early education.

Bose was at least 60&#;years ahead of his time. In fact, he had anticipated the existence of P-type and N-type semiconductors."^[30]

Bose's experiment on the optical rotation of microwaves in a twisted jute structure^[33] pioneered the study of chiral media, and preceded the fields of man-made dielectrics and metamaterials by decades and a century, respectively.^[34][35][36]

Plant research

Bose conducted most of his studies in plant research on Mimosa pudica and Desmodium gyrans plants.

His major contribution in the field of biophysics was the demonstration of the electrical essence of the conduction of various stimuli (e.g., wounds, chemical agents) in plants, which were earlier thought to be of a chemical nature. In order to understand the heliotropic movements of plants (the movement of a plant towards a light source), Bose invented a torsional recorder.

He found that light applied to one side of the sunflower caused turgor to raise on the opposite side.^{[37][non-primary provider needed]} These claims were later proven experimentally.^{[38][non-primary source needed][original research?]} He was also the first to study the action of microwaves in plant tissues and corresponding changes in the cell membrane potential.

He researched the mechanism of the seasonal consequence on plants, the effect of chemical inhibitors on plant stimuli and the effect of temperature.^{[citation needed]}

Study of metal fatigue and cell response

Bose performed a comparative study of the fatigue response of various metals and organic tissue in plants.

He subjected metals to a combination of mechanical, thermal, chemical, and electrical stimuli and noted the similarities between metals and cells. Bose's experiments demonstrated a cyclical fatigue response in both stimulated cells and metals, as adv as a distinctive cyclical fatigue and recovery response across multiple types of stimuli in both living cells and metals.^{[citation needed]}

Bose documented a characteristic electrical response curve of plant cells to electrical stimulus, as well as the decrease and eventual absence of this response in plants treated with anaesthetics or poison.

The response was also absent in zinc treated with oxalic acid. He noted a similarity in reduction of elasticity between cooled metal wires and chemical-free cells, as well as an impact on the recovery cycle period of the metal.^{[39][40][non-primary root needed]}

Science fiction

In , Bose wrote Niruddesher Kahini (The Story of the Missing One), a compact story that was later expanded and added to Abyakta (অব্যক্ত) collection in with the unused title Palatak Tuphan (Runaway Sea-Storm).

It was one of the first works of Bengali science fiction.^[41][42]

Bose Institute

Main article: Bose Institute

In Bose established the Bose Institute in Kolkata, West Bengal, India.

Bose served as its director for its first twenty years until his death.

A crater on the Moon was named in his honour. Established inthe institute was the first interdisciplinary research centre in Asia. Prior to his enrollment at St. He attended the University of London to study medicine, but had to give it up due to health problems.

Today it is a public analyze institute of India and also one of its oldest. Bose in his inaugural address on 30 November dedicated the institute to the nation saying:

I dedicate today this Institute—not merely a Laboratory but a Temple.

The power of physical methods applies to the establishment of that truth which can be realised directly through our senses, or through the vast enlargement of the perceptive range by means of artificially created organs Thirty-two years ago I chose the teaching of science as my vocation.

It was held that by its very peculiar constitution, the Indian mind would always turn away from the study of Nature to metaphysical speculations. Even had the capacity for inquiry and accurate observation been assumed to be submit, there were no opportunities for their employment; there were neither well-equipped laboratories nor skilled mechanicians.

This was all too factual. It is not for dude to complain of circumstances, but bravely to accept, to confront and to dominate them; and we belong to that race which has accomplished great things with simple means.^[43]

Later life

He spent the last years of his life in Giridih.

Here he lived in the house located near Jhanda Maidan. This building was named Jagdish Chandra Bose Smriti Vigyan Bhavan. It was inaugurated on 28 February by then Governor of Bihar Akhlaqur Rahman Kidwai.^{[citation needed]}

Personal views

Philosophical views

Jatras, which were popular ancient plays, sparked his interest in the stories of the Mahabharata and Ramayana.

In the latter, he was particularly impressed by the character of Rama and even more so by the soldierly devotion of his brother Lakshmana. However, he found that most of the characters in these stories seemed too good and perfect. It was the elderly warriors of the Mahabharata, with their flaws and qualities that were both human and superhuman, who appealed more to his imagination as a boy.

Impressed by Karna, Bose said:

Always in struggle for the uplift of the people, yet with so little success, such frequent failures, that to most he seemed a failure. All this too gave me a lower and lower idea of all worldly success - how small its so-called victories are!

- and higher and higher idea of conflict and defeat; and of true success born of defeat. In such ways I have come to perceive one with the highest essence of my race; with every fibre thrilling with the feeling of the past.

That is its noblest teaching - that the only real and spiritual advantage is to fight just, never to take crooked ways, but keep to the direct path, whatever be in the way.

Legacy and honors

Bose's place in history is now being re-evaluated.

His work may have contributed to the development of radio communication.^[27] He is also credited with discovering millimetre length electromagnetic waves and being a pioneer in the field of biophysics.^[48]

Many of his instruments are still on display and remain largely usable over years later.

They include various antennas, polarisers, and waveguides.

To commemorate his birth centenary in , the JBNSTS scholarship programme was started in West Bengal. In the alike year, India issued a postage stamp bearing his portrait.^[49] The same year Acharya Jagdish Chandra Bose, a documentary film directed by Pijush Bose, was released.

It was produced by the Government of India's Films Division.^[50][51] Films Division also produced another documentary film, again titled Acharya Jagdish Chandra Bose, this period directed by the prominent Indian filmmaker Tapan Sinha.^[52]

On 14 September , Bose's experimental work in millimetre-band radio was recognised as an IEEE Milestone in Electrical and Computer Engineering, the first such recognition of a uncovering in India.^[53]

On 30 November , Bose was celebrated in a Google Doodle on the th anniversary of his birth.^[54]

In , the Bank of England decided to redesign the 50 pound note with a prominent scientist.

Jagadish Chandra Bose was featured in that nomination list for his pioneering work on technology that would enable later growth of Wi-Fi.^[55][56][57] However, he was not shortlisted.

Honors

Legacy

Publications

Journals

Books

• Response in the Living and Non-living, ^[67]
• Plant response as a means of anatomical investigation, ^[68]
• Comparative Electro-physiology: A Physico-physiological Study, ^[69]
• Researches on Irritability of Plants, ^[70]
• Life Movements in Plants (vol.1), First Published , Reprinted ^[71]
• Life Movements in Plants, Volume II, ^[72]
• Physiology of the Ascent of Sap, ^[73]
• The physiology of photosynthesis, ^[74]
• The Nervous Mechanism of Plants,
• Plant Autographs and Their Revelations,
• Growth and tropic movements of plants, ^[75]
• Motor mechanism of plants,

Other

Notes

References

Further reading

• Ghosh, Kunal ().

  Unsung Genius&#;: A Animation of Jagadish Chandra Bose. India. Aleph Book Company.

• Pearson G.L., Brattain W.H. (). "History of Semiconductor Research". Proc. IRE. 43 (12): – doi/JRPROC S2CID&#;
• J.M. Payne & P.R.

  Jewell, "The Upgrade of the NRAO 8-beam Receiver," in Multi-feed Systems for Radio Telescopes, D.T. Emerson & J.M. Payne, Eds. San Francisco: ASP Conference Series, , vol. 75, p.&#;

• Fleming, J. A. (). The principles of electric wave telegraphy.

  London: New York and.

• Yogananda, Paramahansa (). Autobiography of a Yogi. Brand-new York. Chapter 8, "India's Excellent Scientist, J.C. Bose"