{"version":"1.0","type":"link","title":"Spirangle - Newikis","description":"In geometry, a spirangle is a spiral polygonal chain. Spirangles are similar to spirals in that they expand from a center point as they grow larger, but they are made out of straight line segments, instead of curves. Spirangle vectographs are used in vision therapy to promote stereopsis and help…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://upload.wikimedia.org/wikipedia/commons/1/13/Spirangle_3angle_5turn.jpg","thumbnail_width":400,"thumbnail_height":364}