Author Topic: SCIENCE WORLD  (Read 3499 times)

R S Sidhu

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SCIENCE WORLD
« on: January 31, 2012, 01:11:51 AM »

R S Sidhu

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Re: SCIENCE WORLD
« Reply #1 on: January 31, 2012, 01:12:42 AM »

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Re: SCIENCE WORLD
« Reply #2 on: February 01, 2012, 08:51:10 AM »

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Re: SCIENCE WORLD
« Reply #3 on: February 01, 2012, 08:51:47 AM »

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Re: SCIENCE WORLD
« Reply #4 on: February 01, 2012, 08:52:44 AM »

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Re: SCIENCE WORLD
« Reply #5 on: February 01, 2012, 05:43:41 PM »

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Re: SCIENCE WORLD
« Reply #6 on: February 01, 2012, 05:45:15 PM »
Feel miserable, don't get sleep: ISRO scientist
Last Updated: Wednesday, February 01, 2012, 16:04 
 Bangalore: Space scientist A Bhaskaranarayana, one of the four former ISRO scientists blacklisted from government jobs on the controversial Antrix-Devas deal, on Wednesday said the action has left him feeling miserable and worried over his standing in society.

"We feel miserable. We have worked for 37 years... average nine to ten hours a day including Sundays, and one day we have been given such a notice (barring them from government jobs)", an anguished Bhaskaranarayana, a former Scientific Secretary at ISRO, said here.

"Such an urgency and emergency only for four of us? We are not the only ones in the country", he said.

 
"I am not doing any government work right now but in society what's our value?", he asked. "We feel miserable, don't get sleep in the night".

Asked why he thought the four had been "singled out" for the action, Bhaskaranarayana said: "Four of us were occupying some positions important at that time which are relating to this area (Antrix-Devas deal).

On whether he saw a conspiracy against the four or somebody behind the move, he said he does not want to guess at all. "It's very difficult to say. People like us who are scientists, we don't know politics. We do our work and get out", he said.

 
Bhaskaranarayana had quit his visiting professorship (after retirement from ISRO), six months before the two-year tenure was to come to an end, following the change of guard at the space agency with K Radhakrishnan taking over from G Madhavan Nair as Chairman.

"I had my own personal reasons (to quit before completion). When Chairman changes, some important positions have to change", he said, seeking to blame Radhakrishnan indirectly.

Former ISRO Chief Nair, who has also been barred from occupying government posts, had accused Radhakrishnan of being responsible for the punitive action against him and the three others because of a "personal agenda."

PTI

R S Sidhu

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Re: SCIENCE WORLD
« Reply #7 on: February 01, 2012, 05:57:58 PM »
Jagadish Chandra Bose (1858-1937)
jagadish Chandra Bose was born on 30 November 1858, in
Myemsingh, Faridpur, a part of the Dhaka District now in Bangladesh. He
attended the village school till he was 11. He then moved to Kolkata where he
enrolled in St. Xavier' '  's. He was very much interested in Biology. However,
Father Lafont, a famous Professor of Physics, inspired in Bose a great interest
in Physics.
Having obtained his B.A. in physical sciences, twenty two year old
Bose left for London, to obtain a medical degree. However, he kept falling ill
and had to discontinue his plans to be a doctor. He then obtained his B.A.
degree from Christ College, Cambridge.
He returned to India in 1885 and joined Presidency College, Kolkata
as an Assistant Professor of Physics, where he remained till 1915. There was
a peculiar practice in the college at that time. The Indian teachers in the college
were paid one third of what the British teachers were paid! So Bose refused
his salary but worked for three years. The fourth year he was paid in full! He
was an excellent teacher, extensively using scientific demonstrations in class.
Some of his students, such as S. N. Bose went on to become famous physicists
themselves.
During this period, Bose also started doing original scientific work in
the area of microwaves, carrying out experiments involving refraction,
diffraction and polarization. He developed the use of galena crystals for making
receivers, both for short wavelength radio waves and for white and ultraviolet
light. In 1895, two years before Marconi' '  's demonstration, Bose demonstrated
wireless communication using radio waves, using them to ring a bell remotely
and to explode some gunpowder.
Many of the microwave components familiar today - waveguides, horn
antennas, polarizers, dielectric lenses and prisms, and even semiconductor
detectors of electromagnetic radiation - were invented and used by Bose in
the last decade of the nineteenth century. He also suggested the existence of
electromagnetic radiation from the Sun, which was confirmed in 1944.
Bose then turned his attention to response phenomena in plants. He
showed that not only animal but vegetable tissues, produce similar electric
response under different kinds of stimuli ' '  '  " mechanical, thermal, electrical
and chemical.
Bose was knighted in 1917 and soon thereafter elected Fellow of the
Royal Society, London, (both as physicist and biologist!). Bose had worked
all along without the right kind of scientific instruments and laboratory. For a
long time he had been thinking of building a laboratory. The result was the
establishment of the Bose Research Institute in Kolkata. It continues to be a
famous centre of research in basic sciences.

R S Sidhu

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Re: SCIENCE WORLD
« Reply #8 on: February 01, 2012, 05:59:41 PM »
Prafulla Chandra Ray (1861-1944)
2
Prafulla Chandra was born on 2 August 1861 in Raruli-Katipara, a
village in the District of Khulna (in present day Bangladesh). His early
education started in his village school. He often played truant and spent his
time resting comfortably on the branch of a tree, hidden under its leaves. After
attending the village school, he went to Kolkata, where he studied at Hare
School and the Metropolitan College. The lectures of Alexander Pedler in the
Presidency College, which he used to attend, attracted him to chemistry,
although his first love was literature. He continued to take interest in literature,
and taught himself Latin and French at home. After obtaining a F.A. diploma
from the University of Calcutta, he proceeded to the University of Edinburgh
on a Gilchrist scholarship where he obtained both his B.Sc. and D.Sc. degrees.
In 1888, Prafulla Chandra made his journey home to India. Initially
he spent a year working with his famous friend Jagadish Chandra Bose in his
laboratory. In 1889, Prafulla Chandra was appointed an Assistant Professor of
Chemistry in the Presidency College, Kolkata. His publications on mercurous
nitrite and its derivatives brought him recognition from all over the world.
Equally important was his role as a teacher - he inspired a generation of young
chemists in India thereby building up an Indian school of chemistry. Famous
Indian scientists like Meghnad Saha and Shanti Swarup Bhatnagar were among
his students.
Prafulla Chandra believed that the progress of India could be achieved
only by industrialization. He set up the first chemical factory in India, with
very minimal resources, working from his home. In 1901, this pioneering effort
resulted in the formation of the Bengal Chemical and Pharmaceutical Works
Ltd.
He retired from the Presidency College in 1916, and was appointed as
Professor of Chemistry at the University Science College. In 1921 when
Prafulla Chandra reached 60 years, he donated, in advance, all his salary for
the rest of his service in the University to the development of the Department
of Chemistry and to the creation of two research fellowships. The value of
this endowment was about two lakh rupees. He eventually retired at the age of
75. In Prafulla Chandra Ray, the qualities of both a scientist and an industrial
entrepreneur were combined and he can be thought of as the father of the
Indian Pharmaceutical industry.

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Re: SCIENCE WORLD
« Reply #9 on: February 01, 2012, 06:00:49 PM »
Srinivasa Ramanujan (1887-1920)
Ramanujan was born in Erode, a small village in Tamil Nadu on 22
December 1887. When he was a year old his family moved to the town of
Kumbakonam, where his father worked as a clerk in a cloth merchant' '  's shop.
When he was nearly five years old, Ramanujan enrolled in the primary school.
In 1898 he joined the Town High School in Kumbakonam. At the Town High
School, Ramanujan did well in all subjects and proved himself an able all
round scholar. It was here that he came across the book Synopsis of Elementary
Results in Pure Mathematics by G. S. Carr. Influenced by the book, he began
working on mathematics on his own, summing geometric and arithmetic series.
He was given a scholarship to the Government College in
Kumbakonam. However his scholarship was not renewed because Ramanujan
neglected all subjects other than mathematics. In 1905 he appeared for the
First Arts examination which would have allowed him to be admitted to the
University of Madras. Again he failed in all subjects other than mathematics,
a performance he repeated in 1906 and 1907 too. In the following years he
worked on mathematics, with only Carr' '  's book as a guide, noting his results
in what would become the famous Notebooks.
He got married in 1909 and started looking for a job. His search took
him to many influential people, among them Ramachandra Rao, one of the
founding members of the Indian Mathematical Society. For a year he was
supported by Ramachandra Rao who gave him Rs. 25 per month. He started
posing and solving problems in the Journal of the Indian Mathematical Society.
His research paper on Bernoulli numbers, in 1911, brought him recognition
and he became well known in Chennai as a mathematical genius. In 1912,
with Ramachandra Rao' '  's help, he secured the post of clerk in the accounts
section of the Madras Port Trust. He continued to pursue mathematics and in
1913 he wrote to G. H. Hardy in Cambridge, enclosing a long list of his own
theorems. Hardy immediately recognized Ramanujan' '  's mathematical ability.
On the basis of Hardy' '  's letters, Ramanujan was given a scholarship by the
University of Madras in 1913. In 1914, Hardy arranged for him to go to Trinity
College, Cambridge.
Ramanujan' '  's work with Hardy produced important results right from
the beginning. In 1916 Ramanujan graduated from Cambridge with a Bachelor
of Science by Research. In 1918, he was elected a Fellow of the Cambridge
Philosophical Society, a Fellow of the Royal Society of London, and a Fellow
of Trinity College, Cambridge, all in the same year! However, from 1917
onwards he was seriously ill and mostly bedridden. In 1919 he returned to
India, in very poor health.
Ramanujan made outstanding contributions to analytical number
theory, elliptic functions, continued fractions, and infinite series. His published
and unpublished works have kept some of the best mathematical brains in the
world busy to this day.
Sir Chandrasekhara Venkata Raman
4
Sir C.

 

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