Search the Dictionary

See Phantascope.

A revolving disk on which figures drawn in different relative attitudes are seen successively, so as to produce the appearance of an object in actual motion, as an animal leaping, etc., in consequence of the persistence of the successive visual impressions of the retina. It is often arranged so that the figures may be…

An instrument for studying the motions of sounding bodies by optical means. It consists of a tube across the end of which is stretched a film of soap solution thin enough to give colored bands, the form and position of which are affected by sonorous vibrations.

An instrument for observing or exhibiting the motions or properties of sounding bodies; especially, an apparatus invented by König for testing the quality of musical strings.

An apparatus for observing the phosphorescence produced in different bodies by the action of light, and for measuring its duration.

A device for giving shifting effects of color to a photograph. The unmounted print, made translucent, is illuminated from behind with colored light.

Anything employed for the observation of light or luminous effects.

A telescope adapted for taking photographs of the heavenly bodies.

A rain gauge.

An instrument consisting essentially of a polarizer and an analyzer, used for polarizing light, and analyzing its properties.

An opera glass or field glass with an oblique mirror arranged for seeing objects do not lie directly before the eye; -- called also diagonal, or side, opera glass.

A glass which makes a single object appear as many; a multiplying glass. Hutton.

An instrument, similar to the phenakistoscope, for presenting to view, or projecting upon a screen, images the natural motions of real objects.

s with their proper relief reversed; -- an effect opposite to that produced by the stereoscope. Wheatstone.

An instrument for measuring the intensity of heat radiating from a fire, or the cooling influence of bodies. It is a differential thermometer, having one bulb coated with gold or silver leaf. [R.]

An instrument for detecting the presence or movement of currents, as of electricity.

A small mirror for use in rhinoscopy.

Same as Gyroscope, 1.

te design, aim, or purpose; intention; drift; object. "Shooting wide, do miss the marked scope." Spenser. Your scope is as mine own, So to enforce or quality the laws As to your soul seems good. Shak. The scope of all their pleading against man's authority, is to overthrow such laws and constitutions in the church. Hoo…

Scopeloid.