
S V Bhat is a Professor at and currently the Chairman of the
Department of Physics, Indian Institute of Science, Bangalore. He is basically an
experimental condensed matter physicist and studies phenomena such as superconductivity,
charge ordering, phase transitions, fast ionic conduction and radiation damage through
resonant and non-resonant rf and microwave response. |
When, in 1805, George Riebau, the book binder on Blandford street,
London, promoted the 14 year old errand boy Michael Faraday as an apprentice, little did
he realise that this is no ordinary assistant he had got. For, Faraday not only bound the
books but also devoured them! He found Jane Marcets Conversations on Chemistry and
the scientific entries in the Encyclopaedia Britannica (third edition, 1797) particularly
interesting. He did not stop just at reading them either. He went on to perform whatever
simple experiments he could, following the instructions. One such experiment was with an
electrostatic machine he constructed and this started his long and fruitful tryst with
electromagnetism which was to end with the conceptualization of electromagnetic fields
some four decades later. The contributions of Michael Faraday during this period laid the
foundations of electromagnetism and electro-technology. And this was only a part of the
sum total of his scientific contributions, the other major contributions being to
chemistry. Indeed it has been said that he would have got at least six Nobel prizes for
his work if the prize were to have been instituted during that time. (See Box 1.) However,
in this article, we shall describe only his contributions to electromagnetism, that too
leaving out arguably the most important of his contributions to this field, the
electromagnetic induction (covered in another article in this issue, p.35). His other
contributions to electromagnetism include, electromagnetic rotation (1921),
magneto-optical effect and diamagnetism (1845), and fundamentals of field theory. These
discoveries and their applications have changed the world we live in, in an irreversible
way.
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Address for Correspondence
S V Bhat
Department of Physics,
Indian Institute of Science,
Bangalore 560012, India
Email: svbhat@physics.iisc.ernet.in
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