1) Jean bernard leon foucault 2) Physicist 
[book] Foucault is a 1985 book about French intellectual Michel Foucault by Brazilian critic and sociologist José Guilherme Merquior. Foucault is part of the Fontana Modern Masters series. ==Summary== Merquior`s evaluation of Foucault`s work is largely negative. He argues that Foucault`s books and essays were often riddled with major error...
[n] - French physicist who determined the speed of light and showed that it travels slower in water than in air
1819–68, French physicist.