Answers . 18 April 2012                     
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    NEXT WEEK

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    Quizzical Pursuit
    —The Architecture Puzzler

    Created by Dave Guadagni

    Solution to Last Week's Puzzler
    Architecture Puzzler #556

    Question

    The ratio of span to thickness in a thin-shell concrete dome is so high that these concrete shells have often been compared to eggshells. How similar are the actual ratios for concrete shells and eggshells?

    Answer

    An 8-inch (20-centimeter) concrete dome might span 200 feet (60 meters), giving a span-to-thickness ratio of 300. This is 10 times thinner than an eggshell, with its ratio of about 30.
     


     

    Okay, got it? Now try this week's Puzzler:

    http://www.ArchitectureWeek.com/quiz.html


     

    Dave Guadagni, AIA, is an architect with Robertson/Sherwood/Architects

    Quizzical Pursuit is Copyright 2012, Dave Guadagni.

    AW

    ArchWeek Image

    The Dome of the Rock in Jerusalem, Israel.
    Photo: Howard Davis/ Artifice Images

     
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