George Batchelor names a value of this quantity that characterizes the impact of molecular diffusion. The “integral” version of this quantity is defined by a spatial integral of the autocorrelation function and is generally larger than a related quantity (-5[1])named for Taylor. One characteristic value of this quantity is defined as nu cubed over epsilon, all raised to the one-fourth power, where nu is the kinematic viscosity and epsilon is the rate of (*) dissipation. (10[1])Kinetic energy cascades (10[1])from eddies with high values of this quantity to eddies with low values of this quantity according to (-5[1])Kolmogorov's theory of turbulence. Density times flow velocity times this quantity is the numerator of the Reynolds number. For 10 points, the period of a simple pendulum is proportional (10[1])to the square root of what quantity? ■END■ (10[1]0[2])