The earth is an imperfect sphere, and the measurement methods available to these two eighteenth-century Frenchmen, though ingenious, were crude.
Made of blackened steel, the 8-inch-wide Final Turn ($3,300) is about the size of a cannonball and weighs 14 pounds, but it's a deliberately imperfect sphere.
Coal balls vary in shape from imperfect spheres to flat-lying, irregular slabs.
Nucleoli, however, are perfect spheres (Brangwynne et al., 2011), whereas P granules are imperfect spheres with irregular, asymmetric contours that are constantly in flux.
The relation, now more slippery and fragile, between the (substantial) universal and the singular required that singulars be moved from the sphere of imperfect and piecemeal sense knowledge and made available to the cognitive faculty that is concerned with universals.
Nonetheless, the boy geniuses of tech provide an imperfect model in the public sphere.
Deviations are caused by imperfect centering of a polystyrene sphere in the x-y-direction and varying focal planes of the objective.
And once people had the addictive taste of the democratic sphere, no matter how imperfect it is, you simply can't get them to accept to be ruled by a police state again.
Eventually, in the center, the remaining imperfect matter formed the core of all the spheres — the Earth.
However, the polystyrene honeycomb mask used for metal deposition, which was prepared using binary colloidal crystals composed of large silica spheres and small polystyrene spheres [10], had a relatively coarse framework, resulting in imperfect templating into the silicon substrate.
In an imperfect lens, however, because of the presence of aberrations, the emerging wave is not a perfect sphere, and the optical paths from the wave to the image point are then not all equal.
