VENUS n.
er from the sun, its orbit lying between that of Mercury and that of the Earth, at a mean distance from the sun of about 67,000,000 miles. Its diameter is 7,700 miles, and its sidereal period 224.7 days. As the morning star, it was called by the ancients Lucifer; as the evening star, Hesperus.
VISION n.
ry; a creation of fancy. Locke. Arc of vision (Astron.), the arc which measures the least distance from the sun at which, when the sun is below the horizon, a star or planet emerging from his rays becomes visible. -- Beatific vision (Theol.), the immediate sight of God in heaven. -- Direct vision (Opt.), vision when…
WAVE n.
of propagation, occupied by a complete wave or undulation, as of light, sound, etc.; the distance from a point or phase in a wave to the nearest point at which the same phase occurs. -- Wave line (Shipbuilding), a line of a vessel's hull, shaped in accordance with the wave-line system. -- Wave-line system, Wave-line…