{"version":"1.0","type":"link","title":"Sander illusion - Newikis","description":"The Sander illusion or Sander's parallelogram is an optical illusion described by the German psychologist Friedrich Sander (1889–1971) in 1926. However, it had been published earlier by Matthew Luckiesh in his 1922 book Visual Illusions: Their Causes, Characteristics, and Applications Archived…","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/6/68/Sander_Illusion.svg/1280px-Sander_Illusion.svg.png","thumbnail_width":1280,"thumbnail_height":457}