Paraboloid Definition

Paraboloid Sentence Examples

• A rotifer may be regarded as typically a hemisphere or half an oblate spheroid or paraboloid with a mouth somewhere on the flat end ("disk" or "corona"), which bears a usually double ciliated ring, the outer zone the "cingulum," and inner the "trochus".

• Foucault invented in 1857 the polarizer which bears his name, and in the succeeding year devised a method of giving to the speculum of reflecting telescopes the form of a spheroid or a paraboloid of revolution.

• The surface of the large mirror should be a paraboloid of revolution, that of the small mirror a true optical plane.

• If we project both polyhedra orthogonally on a plane perpendicular to the axis of the paraboloid, we obtain two figures which are reciprocal, except that corresponding lines are orthogonal instead of parallel.

• Another form of the paraboloid condenser, also due to Wenham, has a plane surface on the upper side.