penrose stepsとは 意味・読み方・使い方

語源

After a drawing by Lionel Penrose and Roger Penrose.

名詞

Penrose steps pl (複数形 only)

1. An impossible loop of endlessly ascending and descending stairs, or an optical illusion appearing to be one.
   • 2010 July 8, Joseph Gordon-Levitt as Arthur, Inception (Movie):

     In a dream, you can cheat architecture into impossible shapes. That lets you create closed loops, like the Penrose Steps. The infinite staircase.

   • 2011 May 13, Islim, Amal A., Walking with the Vain Cattle: In the Womb of Life, the Plant of Miracle Is Ready to Blossom a White Flower, Bloomington: Balboa Press, ISBN 9781452533964, OL 25423082M:

     I'll have my heaven, / Where heaven is love and love is my heaven. / I just have to climb through those Penrose steps! / Till I find sky number seven.

   • 2012 April 16, Coley, Rob, Cloud Time, Alresford: Zero Books, ISBN 9781780990958, OL 25423081M, page 100:

     At this book's inception, when we came to, we found ourselves already traipsing around Penrose steps, already reactively enclosed in an unceasing loop.

同意語

• Penrose staircase
• Penrose stairs