

@Rainmaker1973
Engineer. Selecting and curating pictures and videos trying to awaken your sense of wonder since 2014. Science, tech, art, weather, space, the unusual around us

Ambiguous grid by Kokichi Sugihara of Meiji University. A mathematically calculated combination of perspective and the physics of reflection produce this striking illusion that works in many configurations [source: [ 网页链接 ↗ ] ] [learn more: [ 网页链接 ↗ ] ] [ 网页链接 ↗ ]