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The pendulum-inspired design of Two Lines Oblique Down, Variation III is typical of Rickey’s geometric, kinetic artwork. [2] Measuring by the greatest extension of the sculpture's "arms," its size is 31' x 42' x 8'. [3] It is constructed from at least five primary, stainless steel components which have been welded and bolted together to form ...
Geometrical optics. Geometrical optics, or ray optics, is a model of optics that describes light propagation in terms of rays. The ray in geometrical optics is an abstraction useful for approximating the paths along which light propagates under certain circumstances. The simplifying assumptions of geometrical optics include that light rays:
Two sets of arrows that exhibit the Müller-Lyer optical illusion. The set on the bottom represents the classic Müller-Lyer stimulus, while on the top is its Brentano modification. All the shafts of the arrows are of the same physical length. The Müller-Lyer illusion is an optical illusion consisting of three stylized arrows. When viewers are ...
The lines pile up on top of each other at the band head, and may not be viewed separately. They have become unresolvable. Double head. Two bands may overlap with the head of one on top of another band or close to each other. This may make a stepped appearance. The two band heads close to each other are called a double head. Headless band
Moiré pattern. A moiré pattern formed by two units of parallel lines, one unit rotated 5° clockwise relative to the other. The fine lines that make up the sky in this image create moiré patterns when shown at some resolutions for the same reason that photographs of televisions exhibit moiré patterns: the lines are not absolutely level ...
The Hering illusion (1861): When two straight and parallel lines are presented in front of radial background (like the spokes of a bicycle), the lines appear as if they were bowed outwards. Hollow-Face illusion: The Hollow-Face illusion is an optical illusion in which the perception of a concave mask of a face appears as a normal convex face.
Intersection (geometry) The red dot represents the point at which the two lines intersect. In geometry, an intersection is a point, line, or curve common to two or more objects (such as lines, curves, planes, and surfaces). The simplest case in Euclidean geometry is the line–line intersection between two distinct lines, which either is one ...
An artistic canon of body proportions (or aesthetic canon of proportion), in the sphere of visual arts, is a formally codified set of criteria deemed mandatory for a particular artistic style of figurative art. The word canon (from Ancient Greek κανών (kanṓn) 'measuring rod, standard') was first used for this type of rule in Classical ...