Even if you had completed your third year … in the University, and were perfect in the theory of the subject, you would still find that there was need of many years of experience, before you could move in a fashionable crowd without jostling against your betters.
From Abbott’s Flatland
2.1a Sedimentation and Diffusion: Why Are They Important?
Sedimentation and diffusion affect many colloidal phenomena. Sedimentation occurs under the influence of gravity and, considerably faster, in a centrifuge. Many analytical and preparative techniques in colloid science (particularly in biophysics and biochemistry) take advantage of centrifugal force for physical characterization or purification ...