Timing for Animation, 40th Anniversary Edition, 3rd Edition
by Harold Whitaker, Tom Sito, John Halas
Water
Water moves in a very characteristic way as it has no mechanical strength and is held together only weakly.
In a water splash, each little drop making up the mass of water at the start proceeds on its own trajectory, or parabola, regardless of what happens to any other part of the splash. In a splash, the water radiates from a central point. It starts as a mass of water which spreads out into irregular sheets, held loosely together by surface tension. As it spreads out even further, the surface tension breaks down and the sheets disintegrate quite suddenly into drops which continue outward individually.
Take, for example, a heavy stone dropped into a lake. As the stone enters some water is dispersed by it and this radiates upward and outward ...
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