Brownian motion

A black and white film clip showing Brownian motion.

Possibly filmed through a microscope, this early film demonstrates the random motion of particles suspended in a fluid (a liquid or a gas) resulting from their collision with quick atoms or molecules within the gas or liquid. This process is known as Brownian motion, which Einstein produced a mathematical description of in his paper in 1905, bringing further evidence to the existence of atoms.

For this film, and several others in our collection, we have tried to contact any known copyright holders and believe it to be an orphan work. If you are the rights holder, would like it to be taken down, or have any more information, please get in touch at

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