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In which book of On the Nature of Things is the description of Brownian motion found?

  • Book I

  • Book II

  • Book III

  • Book IV

Answer

In On the Nature of Things, the Roman poet Lucretius describes the random motion of small particles as being caused by the collisions of atoms and voids. This is an early description of Brownian motion, which is the random motion of particles suspended in a fluid. The particles are buffeted by the molecules of the fluid, which are in constant motion.
Unraveling the Enigma: The Lucretius Quiz

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