Calamine brass Calamine brass Calamine brass is brass produced by a particular alloying technique using the zinc ore calamine directly, rather than first refining it to metallic zinc. Direct zinc smelting appears to have been unknown in Europe until the mid-18th century, even though the alloyed calamine brass was in use for centuries, and metallic zinc was produced directly via reducing-atmosphere smelting in India and China from the 12th century CE onwards. Brass is an alloy of copper and zinc and, when it was first developed, methods for producing metallic zinc were unknown. Metallurgists wishing to produce brass thus used calamine (actually
Extracted of "Electric Sheep" called it "an excellent science-fiction thriller that, while reminiscent of a number of other films ... improves on all its predecessors". Jeremy Kirk of First Showing rated it 8.5/10 and described it as "a classic case on how indie science fiction works", focused on character and narrative. "Starburst" rated it 5/10 stars and wrote that the film's execution falls short of its "fascinating, thought-provoking" premise. Extracted Extracted, also known as Extraction in the UK, is an independent 2012 American science fiction thriller directed and written by Nir Paniry. Sasha Roiz stars as a scientist whose consciousness becomes