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Nicolas Léonard Sadi Carnot

French physicist, the "father of thermodynamics" (1796–1832)

  • Fame60.4
  • Momentum0.4
  • France rank#202
Source-basedFalling
  • Fame60.4
  • Momentum0.4
  • France rank#202
  • Academics rank#246
  • Wikipedia14.1K
Lived 1796–1832, aged 36France
France flagFranceAcademicsAcademic
  • Wikipedia
    71 languages
    Cross-language footprint
  • Rank in France
    #202
    Academics
  • Era
    1796–1832
    Aged 36
Network

In their orbit

People connected to Nicolas Léonard Sadi Carnot

Lazare Carnot
FatherLazare Carnot
Hippolyte Carnot
SiblingHippolyte Carnot
Summary
Updated 2026-06-21

A French military engineer who published exactly one essay — in 1824, on the efficiency of heat engines — then died at 36 in obscurity. That lone work became the foundation of thermodynamics after others decoded it a decade later.

Key facts
Profile type
Academic
Category
Academics
Country
France
Country rank
#202
Category rank
#246
Last updated
2026-06-21
Biography

About

Nicolas Léonard Sadi Carnot was born 1 June 1796, son of Lazare Carnot, a mathematician and commander in the Revolutionary and Napoleonic armies. He graduated from the École polytechnique and served as an officer in the Engineering Arm, but his family faced persecution after Napoleon's fall in 1815, which shadowed his career. In June 1824 he published Reflections on the Motive Power of Fire, developing the first successful theory of maximum heat engine efficiency. The work drew little notice until 1834, when Émile Clapeyron wrote a detailed commentary that reached William Thomson and Rudolf Cl…

Voice

In their own words

Sourced, dated quotes from Nicolas Léonard Sadi Carnot

Nicolas Léonard Sadi Carnot
said · 1824
Nature, in providing us with combustibles on all sides, has given us the power to produce, at all times and in all places, heat and the impelling power which is the result of it.
— Réflexions sur la puissance motrice du feu et sur les machines propres à développer cette puissance (1824). Title translated as above by R.
Nicolas Léonard Sadi Carnot
said · 1824
Iron and heat are... the supporters, the bases, of the mechanic arts.
— Réflexions sur la puissance motrice du feu et sur les machines propres à développer cette puissance (1824). Title translated as above by R.
Nicolas Léonard Sadi Carnot
said · 1824
To take away to-day from England her steam-engines would be to take away at the same time her coal and iron.
— Réflexions sur la puissance motrice du feu et sur les machines propres à développer cette puissance (1824). Title translated as above by R.
Nicolas Léonard Sadi Carnot
said · 1824
Steam navigation... tends to unite the nations of the earth as inhahitants of one country. ...is not this the same as greatly to shorten distances?
— Réflexions sur la puissance motrice du feu et sur les machines propres à développer cette puissance (1824). Title translated as above by R.
Nicolas Léonard Sadi Carnot
said · 1824
Savery, Newcomen, Smeaton, the famous Watt, Woolf, Trevithick, and some other English engineers, are the veritable creators of the steam-engine.
— Réflexions sur la puissance motrice du feu et sur les machines propres à développer cette puissance (1824). Title translated as above by R.
via Wikiquote · CC BY-SA
Gallery

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8 images · refresh overdue
Filed under

Tags & topics

#Developers#Academic#Mathematics#Physics#Web Development#France#Europe#19th Century
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By the numbers

Score breakdown

The six component signals behind the Fame score, and their ranks across the leaderboards.

Fame
Falling
60.4
Composite of search demand, mentions, audience & graph footprint.
Score components
Momentum0.4
Historical24.5
Source confidence60.0
Completeness70.0
Global rank
—
Country rank
→
#202
Category rank
→
#246
Receipts

Sources

  • Wikidata
    wikidata · wikidata.org
    High confidence
  • Wikipedia
    wikipedia · en.wikipedia.org
    High confidence
  • Pantheon 2.0
    database · pantheon.world
    High confidence
Identity

Quick facts

Country
France
Category
Academics
Profile type
Academic
Status
deceased
Born
June 1, 1796
Died
August 24, 1832
Wikipedia
View article
Last updated
26d ago
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Where Nicolas stands

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Malcolm Nance sits just ahead in Academics.
  • #246 in Academics→
  • #202 in France→
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Momentum

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Fame score · last 90 days
Google search interest · last 90 days
0
7-day avg
100
90-day peak
-100%
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