Spirangle
Encyclopedia
Spirangles are geometric figures related to spiral
s. They are similar to spirals in that they expand from a center point as they grow larger, but they are made out of straight line segment
s, instead of curves. Spirangle vectograph
s are used in vision therapy to promote stereopsis
and help resolve problems with hand–eye coordination.
. The spirangle can start at a center point, or a distance from the center, and has some number of turns around the center point.
– vectograms
Electronics
– printed inductor
s
Architecture
– ‘spiral’ staircases
Jewelry – earrings, pendants
Spiral
In mathematics, a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point.-Spiral or helix:...
s. They are similar to spirals in that they expand from a center point as they grow larger, but they are made out of straight line segment
Line segment
In geometry, a line segment is a part of a line that is bounded by two end points, and contains every point on the line between its end points. Examples of line segments include the sides of a triangle or square. More generally, when the end points are both vertices of a polygon, the line segment...
s, instead of curves. Spirangle vectograph
Vectograph
A vectograph is a type of stereoscopic print or transparency viewed using the polarized 3D glasses most commonly associated with projected three-dimensional motion pictures....
s are used in vision therapy to promote stereopsis
Stereopsis
Stereopsis refers to impression of depth that is perceived when a scene is viewed with both eyes by someone with normal binocular vision. Binocular viewing of a scene creates two slightly different images of the scene in the two eyes due the the eyes' different positions on the head...
and help resolve problems with hand–eye coordination.
Two-dimensional spirangles
A two-dimensional spirangle is an open figure consisting of a line bent into angles similar to a corresponding polygonPolygon
In geometry a polygon is a flat shape consisting of straight lines that are joined to form a closed chain orcircuit.A polygon is traditionally a plane figure that is bounded by a closed path, composed of a finite sequence of straight line segments...
. The spirangle can start at a center point, or a distance from the center, and has some number of turns around the center point.
Three-dimensional spirangles
Three-dimensional spirangles have layers that slant upward, progressively gaining height from the previous segment. This is similar to staircases in large buildings that turn at the top of each flight. The segments also may progressively lose an amount of length and resemble a pyramid.Uses
OphthalmologyOphthalmology
Ophthalmology is the branch of medicine that deals with the anatomy, physiology and diseases of the eye. An ophthalmologist is a specialist in medical and surgical eye problems...
– vectograms
Electronics
Electronics
Electronics is the branch of science, engineering and technology that deals with electrical circuits involving active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies...
– printed inductor
Inductor
An inductor is a passive two-terminal electrical component used to store energy in a magnetic field. An inductor's ability to store magnetic energy is measured by its inductance, in units of henries...
s
Architecture
Architecture
Architecture is both the process and product of planning, designing and construction. Architectural works, in the material form of buildings, are often perceived as cultural and political symbols and as works of art...
– ‘spiral’ staircases
Jewelry – earrings, pendants