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The metals of antiquity are the seven metals which humans had identified and found use for in prehistoric times in Africa, Europe and throughout Asia: [1] gold, silver, copper, tin, lead, iron, and mercury. Zinc, arsenic, and antimony were also known during antiquity, but they were not recognised as distinct metals until later.
With the rise of Anti-German sentiment after the start of World War I in 1914, the Federal government banned the German language in Missouri Rhineland schools. The Trading with the Enemy Act of 1917 caused the closure of several Missouri Rhineland German newspapers, such as the Osage County Volksblatt, and the Sedalia Journal. Missouri ...
Deutschheim State Historic Site is a state-owned property located in Hermann, Missouri, United States, preserving historic houses and other structures, such as a barn and winery, built and used by German immigrants in the middle 19th century. [4]
The entire facility depicts aspects of the Saxon migration and settlement, and displays the domestic and farming artifacts of 19th century German rural settlements in Perry County, Missouri. The Saxon Lutheran Memorial is an outdoor history museum in the setting of a log cabin village located on the homestead and farm of the Bergt Farm Complex ...
The addition of a second metal to copper increases its hardness, lowers the melting temperature, and improves the casting process by producing a more fluid melt that cools to a denser, less spongy metal. [6] This was an important innovation that allowed for the much more complex shapes cast in closed molds of the Bronze Age.
Aristotle's metaphysical theory from times of antiquity had wide-ranging influence on similar theory found in later medieval Europe, as the historian Berthelot notes: The theory of exhalations was the point of departure for later ideas on the generation of metals in the earth, which we meet with Proclus, and which reigned throughout the middle ...
Reconstruction of Ötzi's copper axe (c. 3300 BCE). The Copper Age, also called the Eneolithic or the Chalcolithic Age, has been traditionally understood as a transitional period between the Neolithic and the Bronze Age, in which a gradual introduction of the metal (native copper) took place, while stone was still the main resource utilized.
The coinage metals comprise those metallic chemical elements and alloys which have been used to mint coins. Historically, most coinage metals are from the three nonradioactive members of group 11 of the periodic table: copper, silver and gold. Copper is usually augmented with tin or other metals to form bronze.