2022--optical-illusion--these-arcs-are-the-same-length---magazine--healty-and-sport-news -

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

The illusion typically presents two or three identical curved arcs. When placed next to each other in a specific staggered alignment, the arc on the bottom or side often appears significantly longer or larger than the one above or beside it. While your specific title mentions "Healthy and Sport

: Your brain performs an "unfair comparison" by matching the shorter inner radius of one arc against the longer outer radius of the adjacent arc. : Your brain performs an "unfair comparison" by

: Two sleeves from a coffee shop are identical but will exhibit this illusion when placed side-by-side. : You can easily recreate this yourself with

: This specific geometric version, often shared on news sites like Hindustan Times , was based on work by researcher Lydia Maniatis.

: You can easily recreate this yourself with simple household items: