Sintra, Portugal
14 lutego 2023, PortugaliaWe're back at it! After returning back to the USA for the holidays and to wait out the winter, we've returned to Europe. We're starting off this leg back where we left off, in the Iberian Peninsula. Czytaj więcej
Podróżnik A nearby plaque read: Vaulted reservoir with a storage capacity of nearly 600 cubic metres of water. The granite blocks used in the construction show signs of having been reused from a different pre-existing structure. The stonemason marks and the ogival arch of the entrance door, indicate that the construction began in the 13th century. There being no record of the water ever drying up, legend has it a Moorish king is buried underneath.
Podróżnik A nearby plaque read: STONE CUTTING: Marks of the extraction of blocks using wooden wedges. To split granite rocks into blocks natural fissures in the rock were used, or new incisions were made, into which wedges of dry wood were introduced under pressure. The wedges were then soaked in water which caused them to expand, and the pressure thus exerted caused the rock to be separated into blocks along the fracture lines. The technique of using wooden wedges was still common in the 19th and 20th centuries.
Podróżnik amazing!