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Lord Kelvin

Lord Kelvin

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Lord Kelvin was a British mathematician and physicist. He was born in 1824 and died in 1907. He was born in Belfast, Northern Ireland, by the name of William Thomson. At the age of 68, he would receive the title of nobility of First Baron Kelvin de Largs, for the great importance of his scientific work.

At 8, Kelvin was already attending his father's lectures, which was a mathematician. Still a teenager, he would write his first work in this area. When this study was presented at the Royal Society branch (where he was studying in Edinburgh, Scotland), they found it more convenient for an older teacher to read it so that the audience would not be bothered to attend such a class. young. At the age of 17, he went to study at Cambridge University in England, and upon graduation he moved to France, where he graduated.

Heat properties were one of Kelvin's favorite systems. It analyzed in more depth Jacques Charles' discoveries on gas volume variation as a function of temperature variation. Charles had concluded from experiments and calculations that at a temperature of -273 ° C all gases would have a volume of zero. Kelvin proposed another conclusion: it was not the volume of matter that would nullify at this temperature, but the kinetic energy of its molecules. He then suggested that this temperature should be considered as low as possible and called it absolute zero. From it, he proposed a new thermometric scale (later called the Kelvin scale), which would allow greater simplicity for the mathematical expression of relations between thermodynamic quantities.

Kelvin also concluded by analyzing the work of French Carnot that it is impossible to use all the energy of a system in the form of work. Some of this energy is inevitably lost in the form of heat. In industry, his studies collaborated to manufacture better galvanometers and electrical cables, implementing the implementation of a telegraph cable between Europe and North America, at the bottom of the Atlantic Ocean. (The success of this venture led him to receive the title of the nobility). He was also responsible for the establishment of the telephone service in Great Britain and, in 1890, was elected president of the Royal society.

All this involvement with science, however, did not prevent him, at the end of his life, from opposing the new discoveries of radioactive disintegration. When he died, he left no heirs. As with Newton, he was buried with great honors in Westminster Abbey (usually reserved for very important figures, such as monarchs). Your headstones are neighbors.

Bibliography: Learning Physics, Publisher Scipione.