When was ampere born

He concluded almost immediately that an electric current creates magnetism the term magnetic field was not yet in use , and proceeded to do a whole series of experiments, coiling wires into helices and spirals, to see what kinds of magnetic effects were produced. Almost by chance, doing one of his experiments with coils, he discovered that two wires close to each other and carrying current in the same direction are attracted to each other, just like two magnets.

He found there were not, and he came to the greater conclusion that all magnetism is a result of electricity in motion, even in permanent magnets, where there must be some tiny electrical currents at work.

It is hard to tell what the differences are, without both in hand. However one of the major reasons why he is associated with electric currents in particular is that he was the first person to develop an instrument to measure the magnitude of the current flowing in a conductor. This was of immense importance because up until this time no quantitative work had been possible and this opened up the way for a far greater understanding of electricity and current flow.

In later work by other scientists this instrument was caleld a galvanometer. Ampere died in Marseilles on 10th June In recognition of the importance of his work, the unit of current was named after him. Ampere's work Ampere's major break though came in after he heard about the discovery that Hans Christian Oersted had made in observing that a magnetic needle was deflected when placed near a current carrying cable.

Last years Ampere died in Marseilles on 10th June He repeated all the calculations in it However his life was soon to be shattered. The French Revolution began with the storming of the Bastille on 14 July but the effect on the Poleymieux region was not very great at first. The city of Lyon refused to carry out instructions from Paris and the city was besieged for two months. He only returned to something like his old self when he met a girl, Julie, whom he fell deeply in love with.

He married Julie in and their son Jean-Jacques was born in This research resulted in him composing a treatise on probability , The Mathematical Theory of Games , which he submitted to the Paris Academy in This work was followed by one on the calculus of variations in His time spent in Lyon had been made difficult due to the continuing decline in his wife's health. Mathematically he continued to produce good work, this time an interesting treatise on analytic geometry. He decided to leave Lyon for Paris.

Hofman writes in [ 4 ] regarding his feelings following his wife's death:- His subsequent depression contributed to his decision to take the earliest opportunity to leave Lyon for new surroundings in Paris.

Later he would regret this decision. The Lyon friends who attempted to fill the emotional void left by Julie's death were missed painfully.

Without a formal education and formal qualifications his appointment is surprising but shows that his potential was recognised at this stage. His life, already containing many tragedies, did not improve and he embarked on a disastrous marriage. Lagrange and Delambre attended his wedding to Jenny on 1 August but, before the birth of their daughter on 6 July , the couple were living apart and were not on speaking terms.