Question: The Borda-Carnot equation was named after Jean-Charles de Borda and a French politician known by what nickname?

Context articles: Rinspeed Mono Ego
Repeating circle
Jean-Charles de Borda
French ship Borda
Niyi
Cape Borda
Borda–Carnot equation
Nathaniel Claiborne
Jean-Charles Colas-Roy
Lazare Carnot

To celebrate 20 years of Rinspeed, Frank Rinderknecht created the 1997 Rinspeed Mono Ego.
 The French fashion designer Jean-Charles de Castelbajac was involved in its design.
 It was shown at the Geneva Motor show.
 Its Aluminium V8 engine, from Korean manufacturer Hyundai, has an output of 410 bhp .
The repeating circle is an instrument for geodetic surveying, invented by Etienne Lenoir in 1784, while an assistant of Jean-Charles de Borda, who later improved the instrument.
 It was notable as being the equal of the great theodolite created by the renowned instrument maker, Jesse Ramsden.
 It was used to measure the meridian arc from Dunkirk to Barcelona by Jean Baptiste Delambre and Pierre Méchain.
Jean-Charles, chevalier de Borda (4 May 1733 – 19 February 1799) was a French mathematician, physicist, political scientist, and sailor.
Six ships of the French Navy have borne the name Borda in honour of Jean-Charles de Borda.
 From 1839 it has been a tradition that the main schoolship of the École navale, a repurposed capital ship, be renamed "Borda" in this role.
Adeniyi Adeyemi Adelakun, better known as Niyi, is a British MC and singer from Crouch End North London, known for his flamboyant dress sense and unique mixing style.
 He is a producer and DJ commonly associated with the East London fashion scene.
 A picture of him, MIA, and Jammer for a Jean-Charles de Castelbajac exhibition hung outside of the Musée de la Mode et du Textilein Paris for a year.
Cape Borda is a headland in the Australian state of South Australia located in the gazetted locality of Cape Borda on the north west tip of Kangaroo Island about 70 km west of the municipal seat of Kingscote.
 It was named after Jean-Charles de Borda (1733–1799), the French mathematician, physicist, naturalist and sailor, by the Baudin expedition to Australia during January 1803.
 It has been the site of an operating lighthouse since 1858 and is currently located within the Flinders Chase National Park.
In fluid dynamics the Borda–Carnot equation is an empirical description of the mechanical energy losses of the fluid due to a (sudden) flow expansion.
 It describes how the total head reduces due to the losses.
 This is in contrast with Bernoulli's principle for dissipationless flow (without irreversible losses), where the total head is a constant along a streamline.
 The equation is named after Jean-Charles de Borda (1733–1799) and Lazare Carnot (1753–1823).
Nathaniel Herbert Claiborne (November 14, 1777 – August 15, 1859) was a nineteenth-century politician from Virginia.
 He was the brother of William Charles Cole Claiborne, the nephew of Thomas Claiborne, the uncle of John Francis Hamtramck Claiborne and the great-great-great granduncle of Marie Corinne Morrison Claiborne Boggs and Claiborne de Borda Pell.
 He was a descendant of Colonel William Claiborne (1600–1677), who was born in Crayford, Kent, England and settled in the Colony of Virginia.
Jean-Charles Colas-Roy is a French politician representing La République En Marche!
.
 He was elected to the French National Assembly on 18 June 2017, representing the department of Isère.
Lazare Nicolas Marguerite, Count Carnot (13 May 1753 – 2 August 1823) was a French politician, engineer, freemason and mathematician.
 He was known as the "Organizer of Victory" in the French Revolutionary Wars.