Measures for diffusion, ergodicity & ageing

After a short introduction into the history of Brownian motion I will present
the stochastic motion in several physical systems, in particular with respect
to the typically measured quantities & how they are analysed. Apart from time
& ensemble averaged moments I will mention (non)ergodic indicators,  displace-
ment correlation functions, non-Gaussianity measures as well as power spectra.
First new results using maximum likelihood approaches are also shown.