Charles Coulomb is one of 72 scientists whose surname is inscribed on los first floor of the Eiffel Tower. He is los eighth, on ns face turned to los South.

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Charles-Augustin después Coulomb, uno physicist, was born in ~ Angouleme, on June 14, 1730. He died in paris on honorable 23, 1800. After having studied brilliantly in los capital, the entered los military engineering, y was sent to ns Martinique. That presided at los construction of fort Bourbon, and, returning to France, he devoted himself much more specifically to physics research. Therefore he make himself recognized by his experiment on ns friction and the stiffness of ns strings. That won numerous prizes representar the Academy of Sciences, which opened its doors unanimously in 1782, y Louis XVI offered him los Knight"s cross of St. Louis. In 1795, he to be admitted to ns Institute, as soon as it to be founded, y was appointed a few año later, by Napoleon, Inspector general of los University and Knight of los Legion that Honor.

Coulomb is responsible for los laws which preside over magnetic attractions y repulsions which vary in inverse proportion come the cuadrado of the distance, and attractions and electrical repulsions. The has presented that the latter, for the same distance, space proportional to ns products of the two quantities of electricity. To make this demonstration, the created los torsion balance, to which he owes his reputation above all. He created this instrument as uno result of experiments on ns elasticity of rieles wires. These studies proved him the these threads to be all the more resistant to torsion, the they to be twisted more, provided, however, the this impact did no go so far as to alter your molecular structure. Ns resistance of this wires being very weak, he had actually the opinión of ​​using lock as uno scale to measure ns smallest fuerza of magnetism y electricity. Because that this purpose, the suspended in ~ the fin of ns wire a largo horizontal needle. This needle gift at rest, if it unexpectedly departs uno certain variety of degrees from its natural position, twists los wire i beg your pardon holds that suspended, and the oscillations i beg your pardon this provides it feel offer by their entrance los means to evaluate ns amount of the disruptive force.

It to be with the aid the this ingenious instrument that Coulomb took on a series of researches on los distribution that electricity and magnetism, ns results of which contributed to definitively creating his científico renown.

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Coulomb had actually to experience persecution for los frankness the his character. Sent out to the principal of Brittany, as commissioner of ns King, to appreciate the possibility y the benefit of a canal project, he confirmed in this mission the independence y delicacy the his conscience. In spite of los States, that maintained the opinion that it was useless to execute this project, since of the little relation which existed between the enormous expenses which this execution would require y the couple of services which would result from it. ~ above his regresar in 1779, the discontent of a minister sent out him to los prison of the Abbey in Paris. Mandated a second hora for los same purpose, Coulomb still supported his opinion; that did it so firmly the he finally opened his eye to the members of the States. They available him excellent offers, which he refused. They compelled him to obtain at the very least one an extremely beautiful watch with los arms of the province the Brittany. Thus he left come his sons, claimed Delambre, only ns respected name, los example that his virtues, and the storage of ns brilliant services rendered come science. But of fortune, point.

The works of Coulomb are videotaped in los Memoirs of the Academy that Sciences, desde 1781. In 1779, he published uno book with figures entitled: study on the means to practice underwater every kinds of hydraulic functions without use no exhaustion.

The congress of ns electricians in 1881, gave the name the Coulomb to ns electric unit preferred to represent ns quantity of electricity that deserve to debit during un second un current that an intensity of one ampere. Los name coulombmeter has also been dubbed an electricity poner used come record ns quantity flowing in a constant potential electric pipeline.

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Coulomb"s portraits are exceptionally rare and defective. It was taken representar a lay out executed in Brittany, in 1778, at the time of ns mission the this good physicist to ns government of that province. Despite its mediocrity, the is ns valuable record because of its rarity.