Quiz . 03 October 2012   
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Quizzical Pursuit
—The Architecture Puzzler

Created by Dave Guadagni


Architecture Puzzler #569

The main spans of the longest suspension bridges tend to be how many times longer than the main spans of the longest steel arch bridges?


Question from Last Week:
Architecture Puzzler #568

Match these stones with the descriptions below: slate, marble, granite, travertine, and limestone

a. Once a limestone, this stone achieved metamorphosis from intense pressures and high temperatures within the earth.

b. A variety of limestone formed in pools by the precipitation of hot mineral-rich spring water. The characteristic holes were created when carbon dioxide bubbles were trapped as the stone was being formed.

c. A fine-grained, metamorphic stone derived from sedimentary rock shale.

d. A sedimentary stone, formed from prehistoric skeletons and shells.

e. An igneous rock, once molten, which formed as it cooled deep within the earth.

f. Commercially, any stone capable of taking a polish (with the exception of granite).  

Answer to Puzzler #568


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

Quizzical Pursuit is Copyright 2012, Dave Guadagni.


ArchWeek Image

At 3,911 meters (12,831 feet), the Akashi Bridge (1998), near Kobe, Japan is the longest suspension bridge in the world.
Photo: Xiaojun Deng

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