Penrose square stairway

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The endless stair

Penrose square stairway

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number game
Impossible figures
One of these is the Penrose square stairway (Figure 6), which one could apparently traverse in either direction forever without getting higher or lower. Strange loops are important features of some of M.C. Escher’s lithographs, including “Ascending and Descending” (1960) and “Waterfall” (1961). The concept of the strange loop is…
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One of these is the Penrose square stairway (Figure 6), which one could apparently traverse in either direction forever without getting higher or lower. Strange loops are important features of some of M.C. Escher’s lithographs, including “Ascending and Descending” (1960) and “Waterfall” (1961). The concept of the strange loop is…
Read More