Homi J. Bhabha

Not to be confused with Homi K. Bhabha

Homi Bhabha
Homi Bhabha (1909-1966)
Born	Homi Jehangir Bhabha Hindi: होमी भाभा (1909-10-30)30 October 1909 Bombay, British India (present-day India)
Died	24 January 1966(1966-01-24) (aged 56) Mont Blanc, France
Residence	New Delhi, India
Citizenship	India
Nationality	Indian
Fields	Nuclear Physics
Institutions	Atomic Energy Commission of India Tata Institute of Fundamental Research Cavendish Laboratory Indian Institute of Science Trombay Atomic Energy Establishment
Alma mater	Elphinstone College Royal Institute of Science University of Cambridge
Doctoral advisor	Ralph H. Fowler
Other academic advisors	Paul Dirac
Known for	Indian nuclear programme Cosmic Rays point particles
Notable awards	Padma Bhushan (1954) Fellow of the Royal Society[1]
Signature
Notes Bhabha was a close and personal friend of Prime Minister of India Jawaharlal Nehru[citation needed]

Homi Jehangir Bhabha, FRS (Hindi: होमी भाभा; 30 October 1909 – 24 January 1966) was an Indian nuclear physicist, founding director, and professor of physics at the Tata Institute of Fundamental Research.^[2][3] Colloquially known as "father of Indian nuclear programme",^[4] Bhabha was the founding director of two well-known research institutions, namely the Tata Institute of Fundamental Research (TIFR) and the Trombay Atomic Energy Establishment (now named after him); both sites were the cornerstone of Indian development of nuclear weapons which Bhabha also supervised as its director.^[2][4]

Career

Starting his scientific career in nuclear physics from Great Britain, Bhabha returned to India for his annual vacation prior to start of the World War II in September 1939, prompting Bhabha to remain in India, and accepted a post of reader in physics at the Indian Institute of Science in Bangalore, headed by Nobel laureate C.V. Raman.^[5] During this time, Bhabha played a key role in convincing the Congress Party's senior leaders, most notable Jawaharlal Nehru who later served as India's first Premier, to start the ambitious nuclear programme. As part of this vision, Bhabha established the Cosmic Ray Research Unit at the institute, began to work on the theory of the movement of point particles, while independently conduct research on nuclear weapons in 1944.^[4] In 1945, he established the Tata Institute of Fundamental Research in Bombay, and the Atomic Energy Commission in 1948, serving its first chairman.^[4] In 1948, Nehru led the appointment of Bhabha as the director of the nuclear programme and tasked Bhabha to develop the nuclear weapons soon after.^[4] In the 1950s, Bhabha represented India in IAEA conferences, and served as President of the United Nations Conference on the Peaceful Uses of Atomic Energy in Geneva, Switzerland in 1955. During this time, he intensified his lobbying for developing the nuclear weapons, and soon after the Sino-Indo war, Bhabha aggressively and publicly began to call for the nuclear weapons.^[5]

Bhabha gained international prominence after deriving a correct expression for the probability of scattering positrons by electrons, a process now known as Bhabha scattering. His major contribution included his work on Compton scattering, R-process, and furthemore the advancement of nuclear physics. He was awarded Padma Bhushan by Government of India in 1954. He later served as the member of the Indian Cabinet's Scientific Advisory Committee and provided the pivotal role to Vikram Sarabhai to set up the Indian National Committee for Space Research. In January 1966, Bhabha died in a plane crash near Mont Blanc, while heading to Vienna, Austria to attend a meeting of the International Atomic Energy Agency's Scientific Advisory Committee.^[5]

Early life

Homi Jahangir Bhabha was born into a wealthy and prominent industrial Parsi family, through which he was related to Dinshaw Maneckji Petit, and Dorabji Tata. He was born on October 30, 1909 in an illustrious family with a long tradition of learning and service to the country. His father was Jehangir Hormusji Bhabha, a well known lawyer and mother was Meheren (http://www.igcar.ernet.in/press_releases/press29.htm). He received his early education at Bombay's Cathedral and John Connon School and entered Elphinstone College at age 15 after passing his Senior Cambridge Examination with Honors. His name, Homi, is from Persian (جهانگیر), meaning "conqueror of the world."^[6]

He then attended the Royal Institute of Science until 1927 before joining Caius College of Cambridge University. This was due to the insistence of his father and his uncle Dorab Tata, who planned for Bhabha to obtain a degree in Mechanical engineering from Cambridge and then return to India, where he would join the Tata Steel Mills in Jamshedpur as a metallurgist.

At the University of Cambridge

While At Cambridge, Bhabha closely interacted and befriended with his fellow countrymen and influential theoretical physicist Raziuddin Siddiqui who would later go on to participate in secret Tube Alloys— a codename of British nuclear program.

Bhabha's father understood his son's predicament, and he agreed to finance his studies in mathematics provided that he obtain first class on his Mechanical Sciences Tripos exam. Bhabha took the Tripos exam in June 1930 and passed with first class. Afterwards, he embarked on his mathematical studies under Paul Dirac to complete the Mathematics Tripos. Meanwhile, he worked at the Cavendish Laboratory while working towards his doctorate in theoretical physics. At the time, the laboratory was the center of a number of scientific breakthroughs. James Chadwick had discovered the neutron, John Cockcroft and Ernest Walton transmuted lithium with high-energy protons, and Patrick Blackett and Giuseppe Occhialini used cloud chambers to demonstrate the production of electron pairs and showers by gamma radiation.

During the 1931–1932 academic year, Bhabha was awarded the Salomons Studentship in Engineering. In 1932, he obtained first class on his Mathematical Tripos and was awarded the Rouse Ball traveling studentship in mathematics. During this time, the nuclear physics was attracting the greatest minds and it was one of the most significantly emerging fields as compared to theoretical physics, the opposition towards theoretical physics attacked the fields as it was lenient towards theories rather than proving the natural phenomenon through experiments. Conducting experiments on particles which also released tremendous amount of radiation, was lifelong passion of Bhabha, and his leading edge research and experiments brought great laurels to Indian physicists who particularly switched their fields to nuclear physics. One of the notable being the Piara Singh Gill who would contribute in his field of interest.

Research in Nuclear physics

In January 1933, Bhabha received his doctorate in nuclear physics after publishing his first scientific paper, "The Absorption of Cosmic radiation". In the publication, Bhabha offered an explanation of the absorption features and electron shower production in cosmic rays. The paper helped him win the Isaac Newton Studentship in 1934, which he held for the next three years. The following year, he completed his doctoral studies in theoretical physics under Ralph H. Fowler. During his studentship, he split his time working at Cambridge and with Niels Bohr in Copenhagen. In 1935, Bhabha published a paper in the Proceedings of the Royal Society, Series A, in which performed the first calculation to determine the cross section of electron-positron scattering. Electron-positron scattering was later named Bhabha scattering, in honor of his contributions in the field.^{[citation needed]}

In 1936, the two published a paper, "The Passage of Fast Electrons and the Theory of Cosmic Showers"^[7] in the Proceedings of the Royal Society, Series A, in which they used their theory to describe how primary cosmic rays from outer space interact with the upper atmosphere to produce particles observed at the ground level. Bhabha and Heitler then made numerical estimates of the number of electrons in the cascade process at different altitudes for different electron initiation energies. The calculations agreed with the experimental observations of cosmic ray showers made by Bruno Rossi and Pierre Victor Auger a few years before. Bhabha later concluded that observations of the properties of such particles would lead to the straightforward experimental verification of Albert Einstein's theory of relativity. In 1937, Bhabha was awarded the Senior Studentship of the 1851 Exhibition, which helped him continue his work at Cambridge until the outbreak of World War II in 1939.^{[citation needed]}

Return to India

In September 1939, Bhabha was in India for a brief holiday when World War II broke out, and he decided not to return to England for the time being. He accepted an offer to serve as the Reader in the Physics Department of the Indian Institute of Science, then headed by renowned physicist C. V. Raman. He received a special research grant from the Sir Dorab Tata Trust, which he used to establish the Cosmic Ray Research Unit at the institute. Bhabha selected a few students, including Harish-Chandra, to work with him. Later, on 20 March 1941, he was elected a Fellow of the Royal Society . With the help of J. R. D. Tata, he played an instrumental role in the establishment of the Tata Institute of Fundamental Research in Bombay.

Atomic Energy in India

When Bhabha was working at the Indian Institute of Science, there was no institute in India which had the necessary facilities for original work in nuclear physics, cosmic rays, high energy physics, and other frontiers of knowledge in physics. This prompted him to send a proposal in March 1944 to the Sir Dorabji Jamsetji Tata. Tata Trust for establishing 'a vigorous school of research in fundamental physics'. In his proposal he wrote :

The trustees of Sir Dorabji Jamsetji. Tata Trust decided to accept Bhabha's proposal and financial responsibility for starting the Institute in April 1944. Bombay was chosen as the location for the prosed Institute as the Government of Bombay showed interest in becoming a joint founder of the proposed institute. The institute, named Tata Institute of Fundamental Research, was inaugurated in 1945 in 540 square meters of hired space in an existing building. In 1948 the Institute was moved into the old buildings of the Royal Yacht club. When Bhabha realized that technology development for the atomic energy programme could no longer be carried out within TIFR he proposed to the government to build a new laboratory entirely devoted to this purpose. For this purpose, 1200 acres of land was acquired at Trombay from the Bombay Government. Thus the Atomic Energy Establishment Trombay (AEET) started functioning in 1954. The same year the Department of Atomic Energy (DAE) was also established.^[9] He represented India in International Atomic Energy Forums, and as President of the United Nations Conference on the Peaceful Uses of Atomic Energy, in Geneva, Switzerland in 1955. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1958.^[10]

Visionary behind India's Three Stage Nuclear Power Programme

Bhabha is generally acknowledged as the father of Indian nuclear power. Moreover, he is credited with formulating the country's strategy in the field of nuclear power to focus on extracting power from the country's vast thorium reserves rather than its meagre uranium reserves.^[11][12] This thorium focused strategy was in marked contrast to all other countries in the world. The approach proposed by Bhabha to achieve this strategic objective became India's three stage nuclear power programme.

Bhabha paraphrased the three stage approach as follows:

As a result of Bhabha's vision, "India has the most technically ambitious and innovative nuclear energy program in the world. The extent and functionality of its nuclear experimental facilities are matched only by those in Russia and are far ahead of what is left in the US."^[11]

Death

He died when Air India Flight 101 crashed near Mont Blanc on 24 January 1966.

Assassination conspiracy

Many possible theories have been advanced for the air crash, including a conspiracy theory in which Central Intelligence Agency (CIA) is involved in order to paralyze India's nuclear program.^[14] While an Indian diplomatic bag containing newspapers, calendars and a personal letter was recovered near the crash site in 2012, it was a "Type C" diplomatic bag containing no documents of importance.^[15][16]

Legacy

After his death, the Atomic Energy Establishment at Bombay was renamed as the Bhabha Atomic Research Centre in his honour. In addition to being an able scientist and administrator, Bhabha was also a painter and a classical music and opera enthusiast, besides being an amateur botanist.^{[citation needed]}He is one of the most prominent scientists that India has ever had. Bhabha also encouraged research in electronics, space science, radio astronomy and microbiology.^{[citation needed]} The famed radio telescope at Ooty, India was his initiative, and it became a reality in 1970. The Homi Bhabha Fellowship Council has been giving the Homi Bhabha Fellowships since 1967 Other noted institutions in his name are the Homi Bhabha National Institute, an Indian deemed university and the Homi Bhabha Centre for Science Education, Mumbai, India.

See also

• India's three stage nuclear power programme
• Piara Singh Gill

References

Wikiquote has a collection of quotations related to: Homi J. Bhabha

1. ↑ Penney, L. (1967). "Homi Jehangir Bhabha 1909-1966". Biographical Memoirs of Fellows of the Royal Society 13: 35–26. doi:10.1098/rsbm.1967.0002. 
2. ↑ 2.0 2.1 Unknown author. "Dr. Homi J. Bhabha" (Google docs). Unknown author, google docs. 
3. ↑ "Homi Jehangir Bhabha". Physics Today 19 (3): 108–101. 1966. doi:10.1063/1.3048089. 
4. ↑ 4.0 4.1 4.2 4.3 4.4 Richelson, Jeffrey Richelson. "U.S. Intelligence and the Indian Bomb". The National Security Archive, The George Washington University. Published through National Security Archive Electronic Briefing Book No. 187. Retrieved 24 January 2012. 
5. ↑ 5.0 5.1 5.2 Sublette, Carey. "Dr. Homi J. Bhabha: Indian Oppenheimer". nuclear weapon archive. nuclear weapon archive (Indian nuclear program). Retrieved 24 January 2012. 
6. ↑ http://fa.wikipedia.org/wiki/جهانگیر
7. ↑ Bhabha, Homi J., and Walther Heitler. "The passage of fast electrons and the theory of cosmic showers." Proceedings of the Royal Society of London. Series A-Mathematical and Physical Sciences 159.898 (1937): 432-458.http://rspa.royalsocietypublishing.org/content/159/898/432.full.pdf
8. ↑ Homi Jehangir Bhabha
9. ↑ Ramachandra Guha (2008). India After Gandhi, page 216. Pan Macmillan Ltd., London. 
10. ↑ "Book of Members, 1780–2010: Chapter B". American Academy of Arts and Sciences. Retrieved 25 June 2011. 
11. ↑ 11.0 11.1 Rahman, Maseeh (1 November 2011). "How Homi Bhabha's vision turned India into a nuclear R&D leader". Mumbai: Guardian. Retrieved 1 March 2012. 
12. ↑ "A future energy giant? India's thorium-based nuclear plans". Physorg.com. 1 October 2010. Retrieved 4 March 2012. 
13. ↑ Ganesan Venkataraman (1994). Bhabha and his magnificent obsessions, page 157. Universities Press. 
14. ↑ Homi Bhabha: The physicist with a difference
15. ↑ "BBC News - India diplomatic bag found in French Alps after 46 years". Bbc.co.uk. 30 August 2012. Retrieved 2012-09-21. 
16. ↑ "BBC News - Diplomatic bag contents revealed". Bbc.co.uk. Retrieved 2012-09-21. 

External links

• Annotated Bibliography for Homi J. Bhabha from the Alsos Digital Library for Nuclear Issues.
• The Woodrow Wilson Center's Nuclear Proliferation International History Project. NPIHP has a series of primary source documents about and by Homi Bhabha.