Before the advent
of twentieth century, science did not acknowledge the vitality of trees and
plants. Then, on May 10, 1901, Acharya
Jagadish Chandra Bose proved that plants are like any other life form. Bose
proved that plants have a definite life cycle, a reproductive system and are
aware of their surroundings. The demonstration took place in the Royal Society
in London, England. The science behind
capturing radio waves was first demonstrated by Bose. While Marconi was
celebrated for his invention, Bose remained unknown to many, as he never
patented his work
Sir Jagadish
Chandra Bose,[1858 – 1937) was a polymath, physicist, biologist, biophysicist,
botanist and archaeologist, as well as an early writer of science fiction. He pioneered the investigation of radio and
microwave optics, made very significant contributions to plant science, and
laid the foundations of experimental science in the Indian subcontinent. IEEE
named him one of the fathers of radio science. He also invented the crescograph. A crater on
the moon has been named in his honour.
Born in Munshiganj,
Bengal Presidency during the British Raj, Bose graduated from St. Xavier's
College, Calcutta. He then went to the University of London to study medicine,
but could not pursue studies in medicine because of health problems. Instead,
he conducted his research with the Nobel Laureate Lord Rayleigh at Cambridge
and returned to India. He then joined the Presidency College of 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. He made
remarkable progress in his research of remote wireless signalling and was the
first to use semiconductor junctions to detect radio signals. However, instead
of trying to gain commercial benefit from this invention, Bose made his
inventions public in order to allow others to further develop his research. Bose
subsequently made a number of pioneering discoveries in plant physiology. He
used his own invention, the crescograph, to measure plant response to various
stimuli, and thereby scientifically proved parallelism between animal and plant
tissues.
Google today
celebrates 158th birthday of
Jagdish Chandra Bose with a doodle. The
Google Doodle shows the scientist with crescograph, which is an instrument that
he invented to measure growth in plants. It also determines environment effects
on vegetation.
His invention,
crescograph helped scientists better understand about cultivation of crops in
an effective way. Prior to his death in 1937, Acharya J. C. Bose founded the Institute in
1917, with the purpose of investigating fully "the many and ever opening
problems of the nascent science which includes both life and non-life".
Acharya Bose s early career included many marvelously inventive and pioneering
experiments on electromagnetism which, in J. J. Thomson s words, marked
"the dawn of the revival in India, of interest in researches in the
Physical Sciences", and on the commonality of the response of plants and
inorganic materials to electric and mechanical stimuli. Those early successes
lay behind the stated purpose. Bose s successors remained true to that purpose.
He was elected the
Fellow of the Royal Society in 1920 for his amazing contributions and
achievements. To recognise Mr Bose's achievements, a small-impact crater on the
far side of the Moon is named after him. It is located close to Crater Bhabha
and Crater Adler and has a reported diameter of 91 kilometres. Jagadish Chandra
Bose was more than just a botanist. He was a polymath adept in mathematics,
electromagnetism, microwave technology. He is even given the credit to be the
first to successfully use microwaves as radio signals.
In November 1895,
Bose presented a public demonstration at Town Hall in Calcutta where he sent an
electromagnetic wave across 75 feet, passing through walls to remotely ring a
bell and to explode some gunpowder. Bose is known as the father of wireless
communication. He had invented the Mercury Coherer, a radio wave receiver that
was used by Guglielmo Marconi to build an operational two-way radio. Being a colonised Indian, Bose was denied
access to laboratories. He would conduct his experiments only at his place. He
would work inside a 24-square-feet room, which is hardly enough for any
scientific experiment. He was considered
as the pioneer of Bengali science fiction. His book 'Polatok Toofan'(Absconding
Storm) described how a cyclone could be averted by using a bottle of hair oil.
It explained how oil changes the surface tension and holds water. His book
'Niruddesher Kahini'(Story of the Untraceable) was the first major Bengali
science fiction.
The inventor of
"Wireless Telecommunications", Bose was not interested in patenting
his invention. In his Friday Evening Discourse at the Royal Institution, London,
he made public his construction of the coherer. Thus The Electric Engineer
expressed "surprise that no secret was at any time made as to its
construction, so that it has been open to all the world to adopt it for
practical and possibly moneymaking purposes."
Media is
highlighting the tribute by Google doodle –Independent Co Uk writes ~ : Bangladeshi scientist Sir Jagadish Chandra Bose was born 158
years ago, and became a world leader in telecommunications with innumerable
achievements to his name. He was born in
Munshiganj, historically known as Bikrampur, now a district in central Bangladesh. The writer needs to check his history – there was
no Bangladesh prior to 1971 !
With regards – S.
Sampathkumar
30th
Nov. 2016.
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