For 10 points, identify this term for the random movement of particles in a fluid.
Velocity is finite and acceleration infinite in the Ornstein-Uhlenbeck analysis of this phenomenon. The first mathematical model for it was based on an analysis of stock prices collected by Louis Bachelier, while Albert Einstein's quantitative study on this phenomenon in 1905 allowed Jean-Baptiste Perrin to verify the existence of atoms in the physical sense. Often characterized as a Wiener stochastic process, it was first observed in an 1827 experiment examining pollen grains under a microscope. For 10 points, identify this term for the random movement of particles in a fluid.
Velocity is finite and acceleration infinite in the Ornstein-Uhlenbeck analysis of this phenomenon.
{Brownian} Motion