Tag : Science

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A spongy nanostructure Scanning a Qing dynasty screen with X-ray fluorescence spectroscopy Northwestern University Scanning a Qing dynasty screen with X-ray fluorescence spectroscopy Northwestern University China​ Cap, Qing dynasty (1644–1912), 18th–19th century, Gold wire, kingfisher feathers, amber, coral, jadeite, ivory, glass and silk courtesy of The Art Institute of Chicago China​ Cap, Qing dynasty (1644–1912), ..

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This is important because it means these rocks were less likely to have been altered in a hydrothermal environment, where scalding hot water was temporarily released by melting ice caused by volcanism or a meteorite impact. Instead, they appear to have been altered under modest temperatures and persistent heavy rainfall. The authors found distinct similarities ..

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