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Answer by 13509 for Easiest way to roughly explain Brownian motion?

You mention the example of pollen, so I'll work with that. There is a quantity known as the mean free path - which is the average distance between consecutive collisions between the pollen and some...

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Answer by niels nielsen for Easiest way to roughly explain Brownian motion?

Here is the part you are missing:The velocities of the water molecules that strike the pollen particle from all directions are not all the same. They exist in a distribution, with some velocities being...

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Easiest way to roughly explain Brownian motion?

All easy explanations of Brownian motion that I have found are all totally wrong in that they just essentially say something like "motion of the pollen is being moved by individual water molecules"...

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