A Brief Account of Microscopical Observationsā¦
Quick Summary
The work A Brief Account of Microscopical Observations by Robert Brown describes his observations of the "rapid oscillatory motion" of microscopic particles suspended in a fluid. This phenomenon, now known as Brownian motion, is the random movement of these particles. Brown initially observed this in pollen grains but later found it applied to various organic and inorganic substances, demonstrating it as a general property of matter in that state. This motion is a direct result of the constant, random collisions of molecules in the surrounding liquid or gas.12
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
