The Borda-Carnot equation was named after Jean-Charles de Borda and a French politician known by what nickname?
Borda–Carnot equation 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).
Jean-François Delacroix Jean-François de Lacroix or Delacroix (3 April 1753 in Pont-Audemer – 5 April 1794 in Paris) was a French politician and member of the Committee of Public Safety. He was known as "Lacroix of Eure-et-Loir" and was guillotined in 1794.