Einstein's Explanation of Brownian Motion  This applet
demonstrates Brownian motion. the big particle can be considered
as a dust particle while the smaller particles can be considered
as molecules of a gas. On the left is the view one would see
through a microscope. To the right is the supposed explanation
for the jittering of the dust particle.  Link to my lecture on
Brownian Motion Link to other Applets! View this page in German
courtesy of azoft