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According to Kipper, acid rain can be particularly harmful to bronze sculptures, because the main component is usually sulfides, or sulfuric acid, which can harm patinas and the bronze surfaces causing streaking to occur on the surface. [1] Many different effects can occur on a sculpture due to being in an outdoor environment.
Derveni krater, bronze, 350 BC, height: 90.5 cm (35 1 ⁄ 2 in.), Inv. B1, Archaeological Museum of Thessaloniki, after cleaning and conservation. Conservation and restoration of metals is the activity devoted to the protection and preservation of historical (religious, artistic, technical and ethnographic) and archaeological objects made partly or entirely of metal.
Bronze artifacts from Sumerian cities and Egyptian artifacts of copper and bronze alloys date to 3000 BC. [10] The Bronze Age began in Southeastern Europe around 3700–3300 BC, in Northwestern Europe about 2500 BC. It ended with the beginning of the Iron Age, 2000–1000 BC in the Near East, 600 BC in Northern Europe.
Bronze is the most popular metal for cast metal sculptures; a cast bronze sculpture is often called simply "a bronze". It can be used for statues, singly or in groups, reliefs , and small statuettes and figurines , as well as bronze elements to be fitted to other objects such as furniture.
The Croatian Apoxyomenos (Croatian: Hrvatski Apoksiomen) is an Ancient Greek statue cast in bronze in the 2nd or 1st century BC; it was discovered in 1996 on the bottom of the sea near the Croatian islet of Vele Orjule, southeast of the island of Lošinj.
On Friday, several of the bronze sculptures in downtown Wichita were suddenly dressed in bright crocheted sweaters and hats. Just as quickly, their clothes started to disappear.
The sculpture is bronze; the base is red sandstone. [2] Shading his eyes to scan the distance, Leif Ericson stands on a large red sandstone pedestal. Unlike other depictions of Ericson, here he is youthful and clean-shaven. He wears a scale armor shirt, ornamented with breast plates and a studded belt.
The two Fraser statues were of the poorest casting quality. The bronze on all four statues was quite porous, allowing water to seep into the metal and cause corrosion. But there were also hundreds of pits dotting the surface of each statue, ranging in size from less than 0.04 inches (1.0 mm) to 0.12 to 0.16 inches (3.0 to 4.1 mm).
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