Makers of ElectricityWalsh, James J. (James Joseph)
History
Makers of Electricity
Walsh, James J. (James Joseph)
Electricity -- Biography
It is easy to understand, however, that a member of the nobility like
Coulomb, whose life had been spent in military affairs, should not be
able to devote himself seriously to scientific matters while his country
was in such a turmoil.
In 1801, he resumed his investigations once more, but now they are
concerned more particularly with magnetism. The first was a theoretical
and practical determination of the forces which hold different magnetic
needles, magnetized to saturation, in the magnetic meridian. This was
followed, in the same year, by a paper which, like its predecessor, was
published among the memoirs of the Institute of France, which had
replaced the Royal Academy of Sciences, to which body many of Coulomb's
papers of the former time had been presented, and in whose publications
they originally appeared. This second paper detailed his experiments on
the determination of the force of cohesion of fluids and the law of
resistance in them, when the movements were very slow.
When the French Institute was organized under Napoleon in 1801, Coulomb
was named among its first members. It is believed that he was even
chosen to occupy a place in the first government of the state, but a man
more interested in politics obtained the place, a fortunate circumstance
for science. Coulomb was named, however, one of the inspectors of public
instruction, then the highest place in the education department, and he
did much to restore to France the educational system that had been
destroyed during the Revolution. In this rather trying work he was noted
for the kindliness yet firmness of his character, while his absolute
fairness and sense of justice were recognized on all sides.
Unfortunately Coulomb was not long spared to continue his work. He took
up his experimental and mathematical investigations, on his return to
the capital, with great enthusiasm, but his health had been undermined
and his work had been rudely interrupted. After 1801, no further paper
by him appears to have been published until 1806. This gave the result
of different methods employed in order to produce in blades and bars of
steel the greatest degree of magnetism. For some time preceding this, in
spite of increasing ill-health, he had continued his experiments on the
influence of temperature on the magnetism of steel. His work on this
subject was not destined to be completed, for not long after passing his
seventieth year, in June of this year, his health gave way completely,
and he died August 23d, 1806. His final observations were gathered by
Biot, carefully preserved, and assigned a place in the volume of
Coulomb's Memoirs, issued by the French Physical Society.
Public-domain text, read in full here on John Shaqi.
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