For this reason, arch bridges must be made of materials that are strong under compression. The Romans used stones. One of the most famous examples of their handiwork is the Pont du Gard aqueduct ...
Le pont a été entièrement construit à sec, c'est-à-dire sans l'aide de mortier, les pierres — dont certaines pèsent six tonnes — étant maintenues par des tenons de chêne. Seule la partie la plus ...
Built in 19 B.C., the Pont du Gard aqueduct piped water to the city ... Centering: This wooden structure bore the arch’s weight until the last stone was laid. When it was removed, the slotted ...
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