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A seismograph showing zigzag lines. The trace of a triangle wave or a sawtooth wave is a zigzag. Pinking shears are designed to cut cloth or paper with a zigzag edge, to lessen fraying. [2] In sewing, a zigzag stitch is a machine stitch in a zigzag pattern. [3]
Zigzag lines [12] Distortions in the size or shape of objects [13] Vibrating visual field; Scintillating scotoma. Shimmering, pulsating patches, often curved; Tunnel vision; Scotoma [14] Blind or dark spots; Curtain like effect over one eye; Slowly spreading spots; Kaleidoscope effects; Temporary blindness in one or both eyes [15] Heightened ...
These stabilimenta can appear as zig-zag lines, and most commonly come in bouts of four creating a center-less X. [2] Spiders in this genus also construct web decorations as vertical lines, and juveniles commonly construct disc-shaped decorations. [3] Other spiders construct round structures covering the entire hub of the web.
The radial lines meet at a central point. The spider makes a frame with several more radial lines and then fills the center with a spiral of silk, leaving a 7.9–9.5 mm (0.31–0.37 in) gap between the spiral rings, starting with the innermost ring and moving outward in a clockwise motion. To ensure that the web is taut, the spider bends the ...
Artist's depiction of a scintillating scotoma, exhibiting a flashing visual pattern similar to dazzle camouflage used during WWI.. Scintillating scotoma is a common visual aura that was first described by 19th-century physician Hubert Airy (1838–1903).
These zigzag lines indicate to United Kingdom motorists that they are approaching a pedestrian crossing. In the United Kingdom, it is the law that all road users, including motorists, give way to pedestrians who have set foot on a zebra crossing. A fine of £100 and three licence penalty points is given to those failing to give way at the ...
Photopsia; This is an approximation of the zig-zag visual of a scintillating scotoma as a migraine aura. It moves and vibrates, expanding and slowly fading away over the course of about 20 minutes.
More Disumbrationist paintings followed: a composition of zig-zag lines and eyeballs he called Illumination; a garish picture of a black woman doing laundry that he called Aspiration, and which a critic praised as "a delightful jumble of Gauguin, Pop Hart and Negro minstrelsy, with a lot of Jerdanowitch individuality"; [2]: 111 Gination, an ...