Contribution of eminent scientists

1. J.C. BOSE &
SIR ISSAC NEWTON
CENTRAL UNIVERSITY
OF JHARKHAND
FIELD BASED ACTIVITY
SUBMITTED BY
NAVIN KUMAR
REG. NO. 19310703058
SUBMITTED TO
DR. MANOHAR KUMAR DAS

2.  Sir Jagadish Chandra Bose was an
Indian biologist, physicist, botanist and an
early writer of science fiction.
 Born on 30th November 1858, in Mymensingh
situated in Bengal Province (present day
Bangladesh).
 He pioneered the investigation of radio
and microwave optics, made significant
contributions to plant science, and laid the
foundations of experimental science in
the Indian subcontinent.

3.  Sir. Jagadish Chandra Bose has been the unsung
hero of Radio Communication. He was the first
to invent Mercury Coherer which was used in
Marconi’s Radio receiver. And Marconi got all the
credits for Radio communication.
 He became a pioneer in multimedia
communication by conducting the first
communication experiments in 1895.
 In 1985 he presented his first paper which was
on ‘The polarisation of Electric Rays by Double
Reflecting Crystals’ before the Asiatic society of
Bengal.

4.  His interest in Biophysics made him work on
plants and its behaviour. And J.C.Bose was the
first person to suggest that plants too can feel
the pain and understand affection.
 Bose did extensive work on Plants, cell
membrane, their tissues and their behaviour to
the electrical stimulus. He invented Crescograph
for recording plants growth.
 In 1917. Sir Jagadish Chandra Bose
established Bose Institute, which became famous
centre for learning and research in the field of
Physics, Chemistry, Plant Biology, Microbiology,
Biochemistry, Bioinformatics, Biophysics and
environmental science.

5.  He became Knight Bachelor in 1917. And
President of 14th session of Indian Science
Congress.
 He became the founding fellow of
the National Institute of Science of India.

6.  Sir Isaac Newton was an English
mathematician, physicist, astronomer,
theologian, and author, who is widely recognised
as one of the most influential scientists of all
time and as a key figure in the scientific
revolution.
 Newton was born into a Puritan family in
Woolsthorpe, a small village in Linconshire near
Grantham, on 25 December 1642.
 Newton was educated at The King's School,
Grantham, which taught Latin and Greek and
probably imparted a significant foundation of
mathematics.

7.  From 1670-1672 he lectured in Optic.
 Investigated the refraction of light.
 Discovered that light had a spectrum of
colours.
 He build the first refracting telescope,
instead of using lenses, he used a curved
mirror.
 He invented the Newtonian telescope

8.  Newton’s First Law of Motion states - An object
at rest tends to stay at rest and that an object in
uniform motion tends to stay in uniform motion
unless acted upon by a net external force.
 Newton’s Second Law of Motion states - The
acceleration produced on a body by a force is
proportional to the magnitude of the force and
inversely proportional to the mass of the object.
 Newton’s Third Law of Motion states - For every
action there is an equal and opposite reaction.

9.  The laws of motion and universal gravitation
 Mathematical description of gravity.
 Removed the last doubts about the validity
of the heliocentric model of the Solar System
 Demonstrated that the motion of objects on
Earth of celestial bodies could be accounted
for by the same principles
 Theoretical predicted that the Earth is
shaped as an oblate spheroid
 Built the first practical reflecting telescope
and developed a theory of colour formulated
an empirical law of cooling

10.  Made the first theoretical calculation of the
speed of sound
 Introduced the notion of a Newtonian fluid
 Contributed to the study of power series,
generalized the binomial theorem to no
integer exponents, developed a method for
approximating the roots of a function, and
classified most of the cubic plane curves
 Philosophiae Naturalis Principia Mathematica
was first published in 1687, laid the
foundations of classical mechanics.