Z
10 entries
- ZenithNavigationp.414That point in the celestial sphere which is situated vertically over the head of the observer,…
- Zenith DistanceNavigationp.416The angular distance of a heavenly body from the zenith--the complement of the altitude, or…
- Zenith SectorNavigationp.416An astronomical instrument used for exact observation of stars in or near the zenith.
- ZeroEngineeringp.454Naught. The term is applied to the point on a scale from which the graduation are made.
- ZeroNavigationp.416The point at which the graduation of a sextant, etc., commences.
- Zero LineEngineeringp.454Absolute zero. The line of no pressure on an indicator diagram, and from which absolute…
- ZodiacNavigationp.416An imaginary zone in the heavens within which the sun, moon and larger planets appear to…
- Zodiacal LightNavigationp.416An ill defined light extending from the horizon upward, and following generally the course of…
- ZoneNavigationp.416A belt; a girdle. There are five zones; the torrid zone, which extends 23 deg. 28 min. on each…
- ZumbraSea Termsp.265A Spanish row-boat.