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In reply to the discussion: The Pantheon in Rome... [View all]Link Speed
(650 posts)30. Plain concrete - amazing stuff
That roof has shown zero deterioration over 2,000 years. And to think it took the same 2,000 years for us to figure out how they did it.
I have some of it and have made a twenty-foot-long X three-feet-wide X one-inch-thick plank of it, set it on sawhorses nineteen feet apart and walked across the span. It didn't even flex.
You can impress a fingerprint in it or break a sledgehammer head on it.
Thanks for the pictures.
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It is a Piazza that a lot of artists set up their works for sale. It is a different piazza.
avebury
Jun 2013
#5
We're still recovering from our jet lag, so relaxing is the order of the day!
CaliforniaPeggy
Jun 2013
#16
Welcome to DU, Link Speed, and thank you for your knowledge on this topic!
CaliforniaPeggy
Jun 2013
#32
And a deeply meaningful use of astronomy by Hadrian to celebrate the glory of Rome
FreepFryer
Jun 2013
#31
We actually have a fair amount of free time, my dear Tuesday Afternoon!
CaliforniaPeggy
Jun 2013
#35