It is about Scientist

3. A Hans Christian Ørsted was Danish physicist and chemist who discovered
that electric currents create magnetic fields, an important aspect
of electromagnetism. He shaped post-Kantian philosophy and advances in
science throughout the late 19th century.
In 1824, Ørsted founded Selskabet for Naturlærens Udbredelse (SNU), a
society to disseminate knowledge of the natural sciences. He was also the
founder of predecessor organizations which eventually became the Danish
Meteorological Institute and the Danish Patent and Trademark Office. Ørsted
was the first modern thinker to explicitly describe and name the thought
experiment.
A leader of the so-called Danish Golden Age, Ørsted was a close friend
of Hans Christian Andersen and the brother of politician and jurist Anders
Sandøe Ørsted, who eventually served as Danish prime minister (1853–54).
The oersted (Oe), the cgs unit of magnetic H-field strength, is named after
him.

4. The young H.C. Ørsted was born
in Rudkøbing. As a young boy Ørsted
developed his interest in science while
working for his father, who owned a
pharmacy. Anders received most of
their early education through self-study
at home, going to Copenhagen in 1793
to take entrance exams for
the University of Copenhagen, where
both brothers excelled academically. By
1796 Ørsted had been awarded honors
for his papers in both aesthetics
and physics.
Early life and studies

5. He earned his doctorate in 1799 for a dissertation based on
the works of Kant entitled "The Architectonics of Natural
Metaphysics".
In 1801 Ørsted received a travel scholarship and public grant
which enabled him to spend three years travelling
across Europe. In Germany he met Johann Wilhelm Ritter, a
physicist who believed there was a connection
between electricity and magnetism. This made sense to
Ørsted since he believed in Kantian ideas about the unity of
nature and that deep relationships existed between natural
phenomena.
Their conversations drew Ørsted into the study of
physics. He became a professor at the University of
Copenhagen in 1806 and continued his research
with electric currents and acoustics.
Under his guidance the University
developed a comprehensive
physics and chemistry program
and established new laboratories.

6. In 1800, he discovered a galvanic
battery inspiring Ørsted to think
about the nature of electricity and
to conduct his first electrical
experiments. Between 1800 to
1803, he visited to Germany,
France and Holland for lectures.
He again visited Germany and
France in 1812 after publishing a
manual called Videnskaben om
Naturens Almindelige
Love and Første Indledning till.

7. Den Almindelige Naturlære (1811). In Berlin he wrote his famous essay on
the identity of chemical and electrical forces in which he first stated the
connection existing between magnetism and electricity. Then, in Paris he
translated that essay in latin with Marcel de Serres.
The Royal Society of London gave him the Copley Medal and the French
Academy awarded him with 3,000 gold francs. Ørsted was just 43 when he
made this great discovery. He established the Royal Polytechnic Institute in
1829 of which he was the first director.
Electromagnetism
A compass needle with a wire, showing the
effect Oersted discovered

8. Statue of Ørsted in Ørstedsparken, in
Copenhagen.
On 21 April 1820, during a lecture, Ørsted noticed
a compass needle deflected from magnetic north
when an electric current from a battery was switched
on and off, confirming a direct relationship between
electricity and magnetism. His initial interpretation
was that magnetic effects radiate from all sides of a
wire carrying an electric current, as do light and heat.
Three months later he began more intensive
investigations and soon thereafter published his
findings, showing that an electric current produces a
circular magnetic field as it flows through a wire.

9. This discovery was not due to mere chance,
since Ørsted had been looking for a relation
between electricity and magnetism for several
years. The special symmetry of the
phenomenon was possibly one of the
difficulties that retarded the discovery.
It is sometimes claimed that Italian Gian
Domenico Romagnosi was the first person who
found a relationship between electricity and
magnetism, about two decades before Ørsted's
1820 discovery of electromagnetism.
Romagnosi's experiments showed that an
electric current from a voltaic pile could deflect
a magnetic needle.

10. His researches were published in two Italian
newspapers and were largely overlooked by the
scientific community.
Ørsted's findings stirred much research into
electrodynamics throughout the scientific
community, influencing French physicist André-
Marie Ampère's developments of a single
mathematical formula to represent the magnetic
forces between current-carrying conductors.
Ørsted's work also represented a major step
toward a unified concept of energy.
In 1822, he was elected a foreign member of
the Royal Swedish Academy of Sciences.

11. Made By:-
Utkarsh Khandelwal
V11
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