While your specific title mentions "Healthy and Sport News," these illusions frequently appear in "Healthy Aging" or "Mental Health" sections of magazines (like Yahoo Lifestyle ) as "brain hacks" to illustrate how perception can differ from reality. Magic Arcs - The Spangler Effect
: This specific geometric version, often shared on news sites like Hindustan Times , was based on work by researcher Lydia Maniatis. While your specific title mentions "Healthy and Sport
: Cutting two identical arcs from the rims of paper plates is a common science demonstration used to teach fair comparisons in experiments. Related Illusions in Media While your specific title mentions "Healthy and Sport