[The paper he wrote, titled "Planck's Law and the Light-Quantum Hypothesis," was first rejected by a referee at the London-based journal named Philosophical Magazine, which had published some of Mr. Bose's previous papers. Undeterred, Mr. Bose sent it, in the summer of 1924, to Berlin , to the desk of Mr. Einstein, who had won his own Nobel three years earlier. Mr. Einstein received dozens of such manuscripts every day, and he was already turning away from the field of quantum mechanics to work out larger unified theories. (In "Subtle is the Lord," Abraham Pais noted that "Einstein said of his work in quantum statistics, 'That's only by the way.'") But perhaps something about Mr. Bose's accompanying letter caught Einstein's eye:]
By Samanth Subramanian
Courtesy of Falguni Sarkar/The S.N. Bose Project |
In the word
"boson," as media reports have plentifully pointed out during the
past two days, is contained the surname of Satyendra Nath Bose, the Calcutta
physicist who first mathematically described the class of particles to which he
gave his name. As was common with Indian scientists in the early 20th century,
however, his work might easily have eluded international recognition. Like the
mathematician Srinivasa Ramanujam, Mr. Bose was saved from obscurity by a
generous and influential mentor in Europe . In Mr. Bose's case, that mentor turned out to be one of
the greatest physicists of them all: Albert Einstein.
In 1921, Mr.
Bose moved from the faculty of the University of Calcutta to that of the University of Dhaka . He had already published papers with his friend and
colleague Meghnad Saha, working particularly equations of state, which describe
how matter behaves under differing sets of physical conditions. Mr. Bose was
not entirely happy in Dhaka at first. A month after he moved, he wrote to Mr. Saha:
Work has
not yet started. [The university has] quite a few things but due to utter
neglect they are in a bad way. Perhaps I need not elaborate. On the table of
the sahibs are scattered lots of Nicol prisms, lens and eye-pieces. It would
require a lot of research to determine which one belongs to which apparatus. We
do suffer from a lack of journals here, but the authorities of the new
university have promised to place orders for some of them along with their back
numbers. Talk is going on about having a separate science library.
After he
settled in, Mr. Bose began to worry away at the intricacies of black-body
radiation. In 1918, Max Planck had won the Nobel Prize in physics for
discovering that objects emit radiation in discrete packets of energy, called
quanta; he had also set down an equation governing this process. But as C.S.
Unnikrishnan, a professor at the Tata Institute of Fundamental Research told
me, Mr. Bose was troubled by a perceived inconsistency in Mr. Planck's process.
"These quanta were treated as particles of light, but the equation simultaneously
assumed that radiation was behaving like waves," Mr. Unnikrishnan said.
"Somewhere this was cheating - that was Bose's impression. So he had to
invent a way of counting the particles in a 'gas' of light, at various possible
energy states, and still have Planck's law hold good. He was
reverse-engineering Planck's equation, in a way."
Much later,
in 1970, Mr. Bose would tell an interviewer named Jagdish Mehra:
As a
teacher who had to make these things clear to his students, I was aware of the
conflicts involved and had thought about them. I wanted to know how to grapple
with the difficulty in my own way. It was not some teacher who asked me to go
and solve this little problem. I wanted to know. And that led me to apply
statistics.
The paper he
wrote, titled "Planck's Law and the Light-Quantum Hypothesis," was
first rejected by a referee at the London-based journal named Philosophical
Magazine, which had published some of Mr. Bose's previous papers. Undeterred,
Mr. Bose sent it, in the summer of 1924, to Berlin , to the desk of Mr. Einstein, who had won his own Nobel
three years earlier. Mr. Einstein received dozens of such manuscripts every
day, and he was already turning away from the field of quantum mechanics to
work out larger unified theories. (In "Subtle is the Lord," Abraham
Pais noted that "Einstein said of his work in quantum statistics, 'That's
only by the way.'") But perhaps something about Mr. Bose's accompanying
letter caught Einstein's eye:
Respected
Master,
I have ventured to send you the accompanying article for your perusal and opinion. I am anxious to know what you think of it I do not know sufficient German to translate the paper. If you think the paper worth publication I shall be grateful if you arrange for its publication in Zeitschrift fur Physik. Though a complete stranger to you, I do not feel any hesitation in making such a request. Because we are all your pupils though profiting only by your teachings through your writings. I do not know whether you still remember that somebody fromCalcutta asked your permission to translate your papers on
Relativity in English. You acceded to the request. The book has since been
published. I was the one who translated your paper on Generalised Relativity.
Yours faithfully
S. N. Bose
I have ventured to send you the accompanying article for your perusal and opinion. I am anxious to know what you think of it I do not know sufficient German to translate the paper. If you think the paper worth publication I shall be grateful if you arrange for its publication in Zeitschrift fur Physik. Though a complete stranger to you, I do not feel any hesitation in making such a request. Because we are all your pupils though profiting only by your teachings through your writings. I do not know whether you still remember that somebody from
Yours faithfully
S. N. Bose
Mr. Einstein
did indeed think the paper worth publication. Within a month, he had translated
and submitted it to Zeitschrift für Physik, appending a note at the end of its
four concise, equation-filled pages: "In my opinion Bose's derivation
signifies an important advance." Mr. Einstein would take Mr. Bose's work
further still, applying his statistical techniques to "count" atoms
in an ordinary gas, and to discover the low-energy states of particles in the
supercooled gases known now as Bose-Einstein Condensates.
The
publication of this paper - and Mr. Einstein's championing of it - earned Mr.
Bose a two-year leave of absence to conduct research in Europe .
His university had been reluctant to grant him this leave, but when Mr.
Einstein sent him a hand-written postcard acknowledging the importance of his
contribution, "it solved all problems," Mr. Bose told Mr. Mehra, who
wrote a short biography of him for the Royal Society in 1975. "That little
thing gave me a sort of passport to the study leave. They gave me leave for two
years and rather generous terms. I received a good stipend. They also gave a
separation allowance for the family, otherwise I would not have been able to go
abroad at all. Then I also got a visa from the German Consulate just by showing
them Einstein's card. They did not require me to pay the fee for the
visa!"
In Paris , Mr. Bose worked with Maurice de Broglie and Marie
Curie, armed with letters of introduction from a French Indologist named Paul
Langevin. "She was very nice," he told Mr. Mehra about Ms. Curie.
"I told her that I would remain in Paris about six months and learn French well, but I wasn't
able to tell her that I knew sufficient French already and could manage to work
in her laboratory. She preferred to have her own ideas and told me that I
better be around a long time, not hurry, and concentrate on the language."
Mr. Bose met
Mr. Einstein only in late 1925, in Berlin . That meeting, he recalled, "was most interesting.
He wanted to know how I had hit upon the idea of deriving Planck's law in this
way. Then he challenged me. He wanted to find out whether my hypothesis did
really mean something novel about the interaction of quanta, and whether I
could work out the details of this business." These were momentous
meetings for Mr. Bose. In 1972, in the American Journal of Physics, William
Blanpied wrote after an interview with Mr. Bose: "Even more than forty
years later, one still has the impression that the young Bose was terribly
intimidated by Europeans... The nature of British rule in India ...had the effect of making the subject people believe
that they really were inferior."
Returning to
Dhaka in 1926, Mr. Bose earned a professorship in physics, but
he did not publish for a long time thereafter. His interests wandered - over
the constantly shifting terrain of physics, but also into other fields, such as
philosophy, anthropology, literature and the surging Indian independence
movement. Only in 1937 did he publish his next physics paper; in the early
1950s, he worked on unified field theories, into which Mr. Einstein had thrown
himself so completely, but these were hardly groundbreaking. "I was not
really in science anymore," Mr. Bose would tell Mr. Mehra, "I was
like a comet, a comet which came once and never returned again."
@ The New York Times
नेपालमा सुकुम्वासी समस्या : सरकारद्वारा मध्य वर्षायाममा सुकुम्वासीहरुलाई तुरुन्त हट्न आदेश
नेपालमा सुकुम्वासी समस्या : सरकारद्वारा मध्य वर्षायाममा सुकुम्वासीहरुलाई तुरुन्त हट्न आदेश
प्रेस विज्ञप्ती
कपिलवस्तु कोपवा गाबिस वाड नं—६ स्थित वागेश्वरी सामुदायिक वन क्षेत्रमा बस्दै आएका सुकुम्बासीले सुरक्षित आवासको माग राख्दै अनिश्चित कालीन यातायात सेवा अवरुद्ध कार्यक्रम आजदेखि शुरु गरेको जानकारीमा आएको छ । जिल्लास्थित वन कार्यालयले सुकुम्बासीलाई बसेको स्थानबाट तुरुन्त हट्न सूचना जारी गरेपछि बर्षाको समयमा आफूहरुको बिचल्ली हुने भन्दै आन्दोलनको आह्वान गरेको पाइएको छ ।
मानवअधिकार संरक्षण बिश्वकै पहिलो प्राथमिकताको बिषय बनिरहेका बखतमा राज्यको जिम्मेवार निकायले सूरक्षित आवासको अधिकारबाट सुकुम्बासी समूहलाई बञ्चित गरेको कुरामा यस मधेस मानव अधिकार गृहको ध्यानाकर्षण भएको छ भने मानवताको नाताले समेत बर्षाको समयमा बस्ती उठाउन निर्देशन दिएको कुरामा हाम्रो आपत्ति छ ।
तर सो विरोध कार्यक्रमले पूर्व पश्चिम महेन्द्र राजमार्ग हुदै चल्ने सम्पूर्ण यातायात सेवा अवरुद्ध हने हुँदा सर्वसाधारण माथि परेको समस्या प्रति पनि हाम्रो ध्यानाकर्षण भएको छ । एउटा समूहले आफ्नो अधिकार सुनिश्चित गर्न अर्को समूहको अधिकार हनन गरेको महसुस गरेका छांै । मानवअधिकार संस्कृतिको बिकास गर्न सबैले आफ्नो अधिकार संगै कर्तव्यको समेत पालना गर्नु अति आवश्यक छ ।
यस्तो अवस्थामा आन्दोलनरत पक्ष र सरोकारवाला निकायका बिच तत्कालै वार्ता गराई समस्याको तुरुन्तै निकास निकाल्न सरकारलाई आह्वानका साथ माँग गर्दछौं ।
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