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Best known for his work on electricity and electrochemistry, Faraday proposed the laws of electrolysis. He also discovered benzene and other hydrocarbons.
As a young man in London, Michael Faraday attended science lectures by the great Sir Humphry Davy. He went on to work for Davy and became an influential scientist in his own right. Faraday was most famous for his contributions to the understanding of electricity and electrochemistry.
The son of a poor and very religious family, Faraday (1791–1867) received little formal education. He was apprenticed to a bookbindery in London, however, and read many of the books brought there for binding, including the "electricity" section of the Encyclopedia Britannica and Jane Marcet''s Conversations on Chemistry. He was also among the young Londoners who pursued an interest in science by gathering to hear talks at the City Philosophical Society.
One of the bookbinder''s customers gave Faraday free tickets to lectures given by Sir Humphry Davy at the Royal Institution, and after attending, Faraday conceived the goal of working for the great scientist. On the basis of Faraday''s carefully taken notes of Davy''s lectures, he was hired by Davy in 1813. His first assignment was to accompany Sir Humphry and his wife on a tour of the Continent, during which he sometimes had to be a personal servant to Lady Davy.
Once back in England, Faraday developed as an analytical and practical chemist. As his chemical capabilities increased, he was given more responsibility. In 1825 he replaced the seriously ailing Davy in his duties directing the laboratory at the Royal Institution.
In 1833 he was appointed to the Fullerian Professorship of Chemistry—a special research chair created for him. Among other achievements Faraday liquefied various gases, including chlorine and carbon dioxide. His investigation of heating and illuminating oils led to his discovery of benzene and other hydrocarbons, and he experimented at length with various steel alloys and optical glasses (for more on benzene, see August Kekulé and Archibald Scott Couper).
Faraday is most famous for his contributions to the understanding of electricity and electrochemistry. In this work he was driven by his belief in the uniformity of nature and the interconvertibility of various forces, which he conceived early on as fields of force. In 1821 he succeeded in producing mechanical motion by means of a permanent magnet and an electric current—an ancestor of the electric motor. Ten years later he converted magnetic force into electrical force, thus inventing the world''s first electrical generator.
In the course of proving that electricities produced by various means are identical, Faraday discovered the two laws of electrolysis: the amount of chemical change or decomposition is exactly proportional to the quantity of electricity that passes in solution, and the amounts of different substances deposited or dissolved by the same quantity of electricity are proportional to their chemical equivalent weights. In 1833 he and the classicist William Whewell worked out a new nomenclature for electrochemical phenomena based on Greek words, which is more or less still in use today—ion, electrode, and so on.
Faraday suffered a nervous breakdown in 1839 but eventually returned to his electromagnetic investigations, this time on the relationship between light and magnetism. Although Faraday was unable to express his theories in mathematical terms, his ideas formed the basis for the electromagnetic equations that James Clerk Maxwell developed in the 1850s and 1860s.
In contrast to Davy, Faraday was known throughout his life as a kind and humble person, unconcerned with honors and eager to practice his science to the best of his ability.
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An overview of Faraday''s extraordinary research - from assisting Humphry Davy to establishing the principles of electromagnetism.
Michael Faraday was born on 22 September 1791 in an area called Newington Butts, which is roughly where the Elephant and Castle is in modern London. His father was a blacksmith, a person who works with iron and steel, shaping them in a hot furnace. This was a job with a low status, which meant that Michael Faraday would have also had a low status when he was growing up.
For the first few years that Faraday worked here he worked closely with Humphry Davy, although they didn''t always get on. Davy and Faraday travelled together in Europe meeting many other famous scientists. Davy''s wife treated Faraday like a servant on this trip. When they came back to England, Davy made Faraday work on different topics to him.
However, when Davy left the RI as a researcher, Faraday was able to start making some of the amazing discoveries that made him famous. In 1821, he made the discovery that led to the development of theelectric motor. Not long afterwards, he discovered a very important chemical calledbenzene. Benzene is usedin lots of different industries, but is also very dangerous. It is present in cigarette smoke and one of the chemicals that makes cigarettes so deadly.
Faraday''s research had mixed fortunes. His discoveries of electricity generation and transmission have helped shape the modern world, and are some of the most important discoveries ever made. However, he wasn''t always so successful; he was asked to make glass. He tried for many months, but in the end was unsuccessful. Which just goes to show that even the greatest scientific minds aren''t good at everything!
Towards the end of his career, Faraday was asked to work on improving lighthouses, to help save ships at sea. He was very successful, and as a thank you the Queen''s husband, Prince Albert, made a gift of a house at Hampton Court for him. He died there on 25 August 1867, and is buried in the Sandemanian plot inHighgate Cemetery.
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