jean bernard leon foucault

1 definition found

jean bernard leon foucault - WordNet (r) 2.1 (2005) :

  Jean Bernard Leon Foucault
      n 1: French physicist who determined the speed of light and
           showed that it travels slower in water than in air;
           invented the Foucault pendulum and the gyroscope
           (1819-1868) [syn: Foucault, Jean Bernard Leon Foucault]