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us views of a moving scene travels uniformly through the field of a magnifying glass. The observer sees each picture, momentarily, through a slit in a revolving disk, and these glimpses, blended by persistence of vision, give the impression of continuous motion.

iage. See Morganatic. -- Left-handed screw, a screw constructed to advance away from the observer, when turned, as in a nut, with a left-handed rotation. An ordinary wood screw is right-handed.

breadth of an object viewed as measured by the angle which it subtends at the eye of the observer; - - called also apparent diameter. -- Magnitude of a star (Astron.), the rank of a star with respect to brightness. About twenty very bright stars are said to be of first magnitude, the stars of the sixth magnitude bein…

to small things; paying attention to details; critical; particular; precise; as, a minute observer; minute observation.

optical phenomenon sometimes seen on the summit of mountains (as on the Brocken) when the observer is between the sun and a mass of cloud. The figures of the observer and surrounding objects are seen projected on the cloud, greatly enlarged and often encircled by rainbow colors.

trial sphere when its axis is oblique to the horizon of the place; or as it appears to an observer at any point on the earth except the poles and the equator. -- Oblique step (Mil.), a step in marching, by which the soldier, while advancing, gradually takes ground to the right or left at an angle of about 25º. It is n…

observation." Shak. To observations which ourselves we make We grow more partial for the observer's sake. Pope.

of the sphere in which the circles of daily motion are parallel to the horizon, as to an observer at either pole. -- Parallel vise, a vise having jaws so guided as to remain parallel in all positions.

ck; to fleece; to swindle by tricks in gambling. [Slang] Smart. He's pigeoned and undone. Observer.

al figures or solids only; and futurism, a theory or practice which attempts to place the observer within the picture and to represent simultaneously a number of consecutive movements and impressions. In practice these theories and methods of the post- impressionists change with great rapidity and shade into one anothe…

the sun upon the horizon glass, and when the reflected image of the sun coincides, to the observer's eye, with the horizon as seen directly through an opening at the side of the horizon glass, the index shows the sun's altitude upon the scale; -- more properly, but less commonly, called an octant. -- Quadrant of altit…

a common wood screw, wind spirally in such a direction that screw advances away from the observer when turned with a right-handed movement in a fixed nut.

A strict observer of the Sabbath.

practical affairs; sharp in business; astute; sharp-witted; sagacious; keen; as, a shrewd observer; a shrewd design; a shrewd reply. Professing to despise the ill opinion of mankind creates a shrewd suspicion that we have deserved it. Secker.

One who speculates. Specifically: (a) An observer; a contemplator; hence, a spy; a watcher. [Obs.] Sir T. Browne.

One who observes or considers; an observer. [R.] Goldsmith.

A view of the universe of brighter stars as it would appear to an observer transported into space outside or beyond our universe of stars.

by refraction or reflection the pictures are superimposed, so as to appear as one to the observer.

One who studies or examines in any manner; an attentive and systematic observer; as, a student of human nature, or of physical nature.

An instrument used for measuring the distance of an object from an observer; as, a telescope with a micrometer for measuring the apparent diameter of an object whose real dimensions are known.