Reference:

http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=178.msg791#msg791

Brownian motion

What?

This is a simulation of Brownian motion of a big particle (dust particle) that collides with a large set of smaller particles (molecules of a gas) which move with uniform motion in different random directions.

How?

The Brownian motion of a particle in a liquid is thus due to the instantaneous imbalance in the combined forces exerted by collisions of the particle with the much smaller liquid molecules (which are in random thermal motion) surrounding it. http://en.wikipedia.org/wiki/Brownian_motion

Why?

The mathematical model of Brownian motion has several real-world applications. An often quoted example is stock market fluctuations. http://en.wikipedia.org/wiki/Brownian_motion

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