Penrose Stairs illusion created by Filipino architect Rafael Nelson Aboganda in 1968

In 1968, Filipino architect Rafael Nelson Aboganda built an actual Penrose stairs in Rochester Institute of Technology.



Rafael Nelson Aboganda

The Penrose stairs or Penrose steps, also dubbed the impossible staircase, is an impossible object created by Lionel Penrose and his son Roger Penrose. A variation on the Penrose triangle, it is a two-dimensional depiction of a staircase in which the stairs make four 90-degree turns as they ascend or descend yet form a continuous loop, so that a person could climb them forever and never get any higher. This is clearly impossible in three dimensions. [Lifted from: Memolition]

Stairwell/ Penrose Stairs Illusion

The Escherian Stairwell: Building a Modern Myth

+  Follow me on Twitter and Facebook Page.  +