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

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.

: Your brain performs an "unfair comparison" by matching the shorter inner radius of one arc against the longer outer radius of the adjacent arc. The illusion typically presents two or three identical

: You can easily recreate this yourself with simple household items: The illusion typically presents two or three identical