The lean-muscled swimmer stands poised at the side of the pool, glances a bit apprehensively into its depths, and then dives quickly into the greenish, slimy liquid. A few gelatinous globules bob gently to the surface.
What has happened to the normally azure, chlorine-scented waters of the University Aquatic Center?
Much as the scene resembles the anxiety-fueled dream of an athlete the night before a big swim meet, the swimmer and pool actually were part of a real-world—though admittedly unconventional—foray into experimental fluid mechanics.
For a few hours last summer, a University pool was transformed into a body of water that looked more like a fully functioning swamp than a swimmer's arena. Members of the University swim team became field researchers in an effort to settle one of the questions that has intrigued scientists—and swimmers—for centuries:
What effect does the viscosity of a fluid medium have on the speed of a body traveling through it?









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