e who parabolic floor inside of a large rotating sphere, which a part of the mechanism of seeing, and which is con- have become blind late in life, or whose fingers are may be entered through the center at the bottom. In trolled by the attraction of gravitation, as are the not very sensitive. They… … Fig. 5.—This picture shows how the rotating parabolic floor will ap except very slowly. A cyclist rid- ing horizontally from a vertical surface. ing in the direction of revolution slowly revolving table, the liquid is thrown outward adds his own centrifugal force to that of the appa- and the air…
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