Quiz . 07 December 2011                     
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Quizzical Pursuit
—The Architecture Puzzler

Created by Dave Guadagni


Architecture Puzzler #542

What do you know about lightning? True or False:

The Empire State Building is struck about seven times a year.

On average, a commercial airliner is struck once during every 5,000 to 10,000 hours of flying time.

Roughly 2,000 thunderstorms are in progress over the earth's surface at any given time, producing as many as 100 cloud-to-ground discharges every second.

The Midwestern states experience the most lightning activity in the United States.

A lightning channel is about 8 inches (20 centimeters) in diameter.

A lightning flash could light a 100-watt bulb for three months.


Question from Last Week:
Architecture Puzzler #541

If you combine two sound sources, each at 50 decibels (dB) what will be the resultant dB level? If you double the distance to a sound source, you reduce the dB by how much?  

Answer to Puzzler #541


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

Quizzical Pursuit is Copyright 2011, Dave Guadagni.


ArchWeek Image

The mooring tower atop the Empire State Building (1931) was originally intended for docking dirigibles. A broadcast tower was later added above it.
Photo: Howard Davis/ Artifice Images

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