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To: DManA

What about the roman arch?


7 posted on 12/17/2012 9:35:46 AM PST by Flick Lives (We're going to be just like the old Soviet Union, but with free cell phones!)
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To: Flick Lives

Neat invention.


8 posted on 12/17/2012 9:39:15 AM PST by DManA
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To: Flick Lives
Reads like the efficiencies of the funicular and the catenary are straight out. ..and let's not even think of Felix Candela's hyperbolic paraboloid, nor the parabolic hyperboloid....;^(

Still standing after 62 years, with only 5/8 in thin concrete shell roof.

24 posted on 12/17/2012 10:50:36 AM PST by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
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