= On the Movement of Small Particles Suspended in a Stationary Liquid Demanded by the Molecular-Kinetic Theory of Heat by Albert Einstein
{c}
{tag=Work by Albert Einstein}
{title2=1905}
Primary paper, in the English translation collected in Investigations on the Theory of the Brownian Movement: https://sites.pitt.edu/~jdnorton/lectures/Rotman_Summer_School_2013/Einstein_1905_docs/Einstein_Brownian_English.pdf
Sections 3–5 connect <equilibrium> drift and <diffusion>, the spherical-particle <drag coefficient>, and mean-squared displacement. The linked scan includes the 1926 translation reprinted in the 1956 Dover edition; the research paper itself is dated 1905.
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