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Good catch.I'm a bit confused -- the title of this thread mentions Marseilles, France, but the Facebook post mentions Baia (in the Gulf of Naples, Italy). Is this off of Marseilles, or is this Baia? Baia is already on my diving bucket list: Archeological Marine Park of Baia
There are several roman ships dive in Italy, at different depths, some of them accessible only to technical divers like the one you linked which is at 60 meters. Close to it there is also the "secca di Santo Stefano" which is a nice non-archeological dive
They actually invented volcanic cement, far more stable and superior to modern cement. KThey invented cement! Good cement hey!
Actually it was pozzolanic concrete. The best, lasting thousands years...They actually invented volcanic cement, far more stable and superior to modern cement. K
Actually it was pozzolanic concrete. The best, lasting thousands years...
Not as today's Portland concrete, which collapses after 50-60 years. Do you know of the collapse of Morandi's bridge in Genoa?