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Quizzical Pursuit
—The Architecture Puzzler

 Solution to Last Week's Puzzler Architecture Puzzler #65 Question Glass takes 13 to 25 gigajoules of energy per ton to produce while copper takes 70 to 170. About how much energy would you guess is required to produce a ton of steel? Aluminum? Answer Steel takes about 25 to 45 gigajoules per ton to produce while aluminum takes about 6 times more, 150 to 220 gigajoules.

 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