Online Dictionary: translate word or phrase from Indonesian to English or vice versa, and also from english to english on-line.
Hasil cari dari kata atau frase: Sector of a sphere (0.00963 detik)
Found 1 items, similar to Sector of a sphere.
English → English
Definition: Sector of a sphere
, n. [L., properly, a cutter, fr. secare,
sectum, to cut: cf. F. secteur. See Section
1. (Geom.) A part of a circle comprehended between two radii
and the included arc.
2. A mathematical instrument, consisting of two rulers
connected at one end by a joint, each arm marked with
several scales, as of equal parts, chords, sines,
tangents, etc., one scale of each kind on each arm, and
all on lines radiating from the common center of motion.
The sector is used for plotting, etc., to any scale.
3. An astronomical instrument, the limb of which embraces a
small portion only of a circle, used for measuring
differences of declination too great for the compass of a
micrometer. When it is used for measuring zenith distances
of stars, it is called a zenith sector.
, an instrument used for measuring the dip of the
Sector of a sphere
, or Spherical sector
, the solid
generated by the revolution of the sector of a circle
about one of its radii, or, more rarely, about any
straight line drawn in the plane of the sector through its