The bronze age in China and India occurred at roughly the same time.
Even during the Bronze Age, there were a few items crafted from meteoritic iron, but the smelting of iron was uncommon. Even during the Iron Age, bronze was widely used. Bronze is used in architecture for structural and design elements, for bearings because of its friction properties, and as phosphor bronze in musical instruments, electrical contacts, and ship propellers. Aluminum bronze is used to make machine tools and some bearings. Bronze wool is used instead of steel wool in woodworking because it doesn't discolor oak.
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Bronze has been used to make coins. Bronze has been used since ancient times to make sculptures. The Assyrian king Sennacherib BC claimed to be the first person to cast huge bronze sculptures using two-part molds, although the lost-wax method was used to cast sculptures long before this time. Share Flipboard Email. Helmenstine holds a Ph. She has taught science courses at the high school, college, and graduate levels. Highly ductile. Bronze exhibits low friction against other metals. Many bronze alloys display the unusual property of expanding a small amount when solidifying from a liquid into a solid.
For sculpture casting, this is desirable, as it helps to fill a mold. Brittle, but less so than cast iron. Do you have any recommendations to help ensure girls initiate high-quality award projects? You can help ensure a girl is doing her best to create a high-quality Take Action project by helping her and her project advisor understand the difference between a one-time community service opportunity and a sustainable Girl Scout Bronze, Silver, or Gold Award Take Action project.
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How is project impact measured? Can a girl complete her project while in college if she is graduating from high school and is already 18 years of age? A girl has until she turns 18 or until the end of the Girl Scout membership year September 30 when she is a senior in high school to complete her project.
What happens if a girl has not completed her project, but is 18 years of age and graduating? In this case the girl would have until September 30 of the year she graduates to complete her project. Get Bronze Award pins and emblems. For Every Girl. Juliette Gordon Low. Executive Team.
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