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Eng ID Term Definition
2861
linear parallax
See PARALLAX: ABSOLUTE STEREO­SCOPIC.
2862
linear scale
See SCALE: BAR.
2863
linear speed
See SPEED.
2864
line of apsides
The line connecting the two orbital points (called apsides) that are nearest and farthest from the centre of attraction, as the PERIGEE and ... more
The line connecting the two orbital points (called apsides) that are nearest and farthest from the centre of attraction, as the PERIGEE and the APOGEE in the case of an ORBIT about the EARTH, and the PERIHELION and the APHELION in the case of an ORBIT about the SUN.
2865
line of collimation
See COLLIMATION.
2866
line of constant scale
Any line on a PHOTOGRAPH which is parallel to the TRUE HORIZON or to the ISOMETRIC PARALLEL.
2867
line of delimitation
A line drawn on a map or chart depicting the separation of any type of maritime jurisdiction.
2868
line of equidistance
See MEDIAN LINE.
2869
line of flow
The vector line showing the DIRECTION OF CURRENT at a given TIME. Also called STREAMLINE.
2870
line of force
A line indicating the direction in which a force acts, as in a MAGNETIC FIELD. See MAGNE­TIC LINES OF FORCE.
2871
line of levels
A continuous series of measured diffe­ren­ces of ELEVATION.
2872
line of nodes
The straight line connecting the two points of intersection of the ORBIT of a PLANET, PLANETOID, or COMET and the ECLIPTIC, or the line of i... more
The straight line connecting the two points of intersection of the ORBIT of a PLANET, PLANETOID, or COMET and the ECLIPTIC, or the line of intersection of the planes of the ORBITS of a SATELLITE and its primary. See NODE.
2873
line of position
A line indicating a series of possible POSITIONS of a craft, determined by OBSERVATION or measurement. Also called position line. See CELEST... more
A line indicating a series of possible POSITIONS of a craft, determined by OBSERVATION or measurement. Also called position line. See CELESTIAL LINE OF POSITION, CIRCLE OF POSITION, COURSE LINE, ELECTRONIC LINE OF POSITION, FIX, HYPERBOLIC LINE OF POSITION, LATITUDE LINE, LEADING LINE, LONGITUDE LINE, RETIRED LINE OF POSITION, SONIC LINE OF POSITION, SPEED LINE, SUMNER LINE, SURFACE OF POSITION, VISUAL LINE OF POSITION.
2874
line of sight
The straight line between two points. This line is in the direction of a GREAT CIRCLE, but does not follow the curvature of the EARTH. See a... more
The straight line between two points. This line is in the direction of a GREAT CIRCLE, but does not follow the curvature of the EARTH. See also COLLIMA­TION: LINE OF.
2875
line of sounding
A series of SOUNDINGS along a predetermined line, and at stated intervals, when SURVEYING. Also referred to as sounding line. See CHECK LINE... more
A series of SOUNDINGS along a predetermined line, and at stated intervals, when SURVEYING. Also referred to as sounding line. See CHECK LINES, CROSS LINES, CROSS-SECTION LINES, INTER LINE, SPLIT LINE, STARRED LINES, TRACK LINE OF SOUNDING, SYSTEMS OF SOUNDING LINES.
2876
line spacing
Distance between sounding lines. Spacing usually depends on the type of survey, the instru­ments used, and the demanded accuracy.
2877
line squall
SQUALL which occurs along a SQUALL LINE.
2878
lipper
Slight ruffling or roughness on a water surface. Light spray from small WAVES. Also called leaper.
2879
liquid compass
See COMPASS.
2880
list
INCLINATION to one side, as of a vessel until she has found EQUILIBRIUM in an inclined position. Listing is a static condi­tion, as distingu... more
INCLINATION to one side, as of a vessel until she has found EQUILIBRIUM in an inclined position. Listing is a static condi­tion, as distinguished from heeling which is dynamic. See HEEL.