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What Brown saw and you can too (1008.0039v2)
Published 31 Jul 2010 in physics.pop-ph, cond-mat.stat-mech, physics.class-ph, and physics.hist-ph
Abstract: A discussion is given of Robert Brown's original observations of particles ejected by pollen of the plant \textit{Clarkia pulchella} undergoing what is now called Brownian motion. We consider the nature of those particles, and how he misinterpreted the Airy disc of the smallest particles to be universal organic building blocks. Relevant qualitative and quantitative investigations with a modern microscope and with a "homemade" single lens microscope similar to Brown's, are presented.
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