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- Q289837 description "Scientific instrument maker".
- Q289837 description "Scientific instrument maker".
- Q289837 subject Q6513954.
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- Q289837 subject Q6933320.
- Q289837 subject Q7928142.
- Q289837 abstract "Étienne Lenoir (1744–1832) was a French scientific instrument maker and inventor of the repeating circle.When hired by Jean-Charles de Borda around 1772 to work on the reflecting circle, he was about thirty years old and nearly illiterate. However, his intelligence and mechanical genius allowed him to perform work that few others could perform. He played a significant role in the improvements to the reflecting circle and later used this experience in inventing the repeating circle. As a result of this work, he became known as the pre-eminent maker of instruments for astronomy, navigation and surveying in France.In 1787, the king of France appointed him certificated engineer to the king. He created the instruments used on all the major French geodetic surveying projects and major naval expeditions of the time. He worked primarily for the Commission des Poids et Mesures (Weights and Measures Commission) after 1792 and for the Commission du Metre (Metre Commission - for the determination of the metric unit of length, the metre). For these commissions, he produced the instruments used to measure the meridian arc and created the platinum rules for baseline measurements. In 1793, he made and signed the provisional standard brass metre. He also invented a comparator for the measurement of the definitive standard metre.Lenoir was also a member of the Commission temporaire des Arts (1793–1794). He was made a member of the Bureau des Longitudes in 1814 and received the Legion of Honour. He son, Paul-Etienne Lenoir, followed on in his footsteps, taking over his workshop around 1815 and continuing his work after Lenoir senior's death.".
- Q289837 birthDate "1744".
- Q289837 birthYear "1744".
- Q289837 deathDate "1832".
- Q289837 deathYear "1832".
- Q289837 thumbnail Borda_repeating_circle,_Etienne_Lenoir,_Paris,_c._1790_-_Mathematisch-Physikalischer_Salon,_Dresden_-_DSC08127.JPG?width=300.
- Q289837 wikiPageWikiLink Q102066.
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- Q289837 wikiPageWikiLink Q6513954.
- Q289837 wikiPageWikiLink Q6644823.
- Q289837 wikiPageWikiLink Q6933320.
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- Q289837 wikiPageWikiLink Q7928142.
- Q289837 wikiPageWikiLink Q816425.
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- Q289837 wikiPageWikiLink Q893387.
- Q289837 dateOfBirth "1744".
- Q289837 dateOfDeath "1832".
- Q289837 name "Lenoir, Étienne".
- Q289837 shortDescription "Scientific instrument maker".
- Q289837 type Person.
- Q289837 type Agent.
- Q289837 type Person.
- Q289837 type Agent.
- Q289837 type NaturalPerson.
- Q289837 type Thing.
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- Q289837 comment "Étienne Lenoir (1744–1832) was a French scientific instrument maker and inventor of the repeating circle.When hired by Jean-Charles de Borda around 1772 to work on the reflecting circle, he was about thirty years old and nearly illiterate. However, his intelligence and mechanical genius allowed him to perform work that few others could perform. He played a significant role in the improvements to the reflecting circle and later used this experience in inventing the repeating circle.".
- Q289837 label "Étienne Lenoir (instrument maker)".
- Q289837 depiction Borda_repeating_circle,_Etienne_Lenoir,_Paris,_c._1790_-_Mathematisch-Physikalischer_Salon,_Dresden_-_DSC08127.JPG.
- Q289837 givenName "Étienne".
- Q289837 name "Lenoir, Étienne".
- Q289837 name "Étienne Lenoir".
- Q289837 surname "Lenoir".