2022--optical-illusion--these-arcs-are-the-same-length---magazine--healty-and-sport-news May 2026

: Two sleeves from a coffee shop are identical but will exhibit this illusion when placed side-by-side.

: 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 : Two sleeves from a coffee shop are

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 : Two sleeves from a coffee shop are