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Radiation Safety for Sunken-Ship Archaeology

By Guest PostOctober 14, 2015Environment, Scienceaircraft carrier, ancient reliefs, ancient sculpture hall, archaeology, assurnasirpal palace, color conceptualization, colors in mesopotamia, isotopes, lei shi, long lost pigments, noaa, radiation safety, san francisco, study tree rings, tree called prometheus, world war

Berkeley Lab researchers help scientists determine the radiation risk of exploring an underwater aircraft carrier.

About 42 miles southwest of San Francisco and 2,600 feet underwater sits the U.S.S. Independence, a bombed-out relic from World War II. The aircraft carrier was a target ship in atomic weapon tests at Bikini Atoll in the Marshall Islands after the war. Then, in 1951, it was loaded up with 55-gallon drums of low-level radioactive waste and scuttled just south of the Farallon National Wildlife Refuge off the California coast. (more…)

Keepers of Prometheus: The World’s Oldest Tree

After a nearly 5,000-year vigil upon a Nevada mountaintop, an ancient tree now finds its home in the UA Laboratory of Tree-Ring Research. A member of the long-lived Bristlecone pine species, the tree called Prometheus is the oldest individual ever known to have lived. Its age was not accurately known until a few years ago.

On a craggy, windswept peak in a lonely Nevada wilderness stands a grove of old-growth trees. Gnarled and twisted, shaped by the weather and whirling winds into erratic growth forms, their roots have clung to the pebble-strewn mountainside for literally millennia. (more…)

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Radiation Safety for Sunken-Ship Archaeology

Keepers of Prometheus: The World’s Oldest Tree