From Colosseum To Stadium | How Did They Build That?

[@MegaBoilermaker]

The temporary wooden support used whilst constructing an arch was usually called "Centering" and some of the support stones can still be seen on a few structures.

[@bushmanPMRR]

I was very fortunate to visit Renzo Piano's new basilica for Padre Pio at San Giovani Rotundo in Italy a few years back. It makes the Bari Stadium look simplistic in comparison. Its a massive, modern building with fascinating arches combined with the spacious external concourse approach. Even the golden cross above the altar is an amazing work of art in itself. Well worth a visit if your'e in the area, even if, like me, you are not religious.

[@kriswang2867]

misleading title of Colosseo that is Theatre of Verona

[@alphadawg81]

The demonstration with the three boxes was entirely wrong!!! The boxes have a rectangular cross section and were held in place by friction due to the pressure from left and right, he had to apply constantly. The actual arch's pieces have a trapezoidal cross section and the key stone (center) works as a wedge. No friction is necessary here. It could be soaking in oil and still work. His little box model wouldn't. I hate when doc presenters have no understanding of what they try to explain the audience!

[@Maccbruce]

Are you implying that if Kodak made trapezoidal film boxes they would still be in business?