What If Penrose Stairs Had Iron Spindles?
Artist M.C. Escher created a disturbing illustration in 1960 after discovering something known as the Penrose stairs. His illustration, Ascending and Descending, depicted a four-sided staircase that created an eternal loop. Every staircase in the loop appears to ascend to a higher level. Unfortunately, what Escher depicted is impossible. The Penrose stairs are a classic […]
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