GT. The Largest Escher Exhibit Ever

The world’s largest ever exhibit of Escher’s works is on display, right now, at the Boca Raton Musuem of Art If you can, this is a must see event! We talk with the collector, Rock J. Walker about his fascination with this amazing work.

 

And of course we answer last week’s puzzle, and hear from listeners!

 

 

2 Comments »

  1. Ken Davis said,

    February 28, 2010 at 7:42 am

    Sexy primes are pairs of primes of the form (p, p+6), so-named since “sex” is the Latin word for “six.”  A sexy prime triplet is thus thre primes of the form (p, p+6,p+12)
    The primes in the triplet I found have 5132 digits with
    p=(84055657369* 205881*4001# * (205881 * 4001# + 1) + 210)*(205881 *4001# – 1)/35 + 1
    The complex structure is to ensure that each member of the triplet can be proven prime using the BLS (Brillhart, Lehmer and Selfridge) test. A BLS test on a number of this size takes only about 1 minute.
    Wheras proving a random number of this length prime  would have required months of processing on the PCs available to me.
    Cheers
    Ken

  2. Dan M said,

    March 5, 2010 at 10:52 am

    You may also want to check out the online Escher exhibit at the National Gallery of Canada’s site:
    http://cybermuse.gallery.ca/cybermuse/youth/escher/index_e.jsp
     

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