interesting puzzle

In addition to its weekly mathematics puzzles, Le Monde is now publishing a series of vulgarisation books on mathematics, under the patronage of Cédric Villani. Jean-Michel Marin brought me two from the series, one on the golden number and one on Pythagoras’ theorem. (This is actually a translation of a series published by El Pais last year.) Those books are a bit stretched given the topic, even though I enjoyed the golden number (the second one having a lot of redundancy with the first one.) However, I came upon an interesting question, namely about the maximum size of a cube that could fit through a tunnel drilled through the unit cube. Sadly, I could not find an answer to this problem on the web, even though the book mentions a solution with a side larger than one…

6 Responses to “interesting puzzle”

  1. [...] article was first published on Xi’an’s Og » R, and kindly contributed to R-bloggers) 2013-04-27 Stella Share [...]

  2. [...] article was first published on Xi'an's Og » R, and kindly contributed to [...]

  3. I think you mean “popularization” of mathematics, rather than “vulgarization”.

  4. It is the so-called Prince Rupert’s cube.

    You can read about it here:
    http://mathworld.wolfram.com/PrinceRupertsCube.html
    http://en.wikipedia.org/wiki/Prince_Rupert's_cube

    And you might also want to check his drops…

    Most importantly, best wishes!

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