Brownian Motion?

Question

It Brownian Motion therory, It is believed that every particle is moving. In the model I have seen it appeared to be random. My question is this; Does the movement of particles have a definite pattern, and how long does it take to repeat its self?

I have read that it is possible not probable. But who would know? Even the bouncing off of the dust particles that sends them like a pool ball in a new trajectory could repeat in a billion years, maybe?

Answer 1

It is, by definition, random. Repitition of a particular sequence of movements in a given timespan (although I don't know how you would measure them accurately in 3 dimensions) is a statistically possible, but highly unlikely, event.

Answer 2

let me explain to u wat brownian motion is...ill make it easier by illustrating it for u...a dust particle is much bigger than air particles ....now all these air particles will constantly hit this dust particle each with a different force and direction...take the net force of these at one second the dust particle will move in this direction..now a new net force hits the dust particle..moves in that direction...there is no defenite pattern its random