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Centuries-old shipwreck discovered off North Carolina coast Posted: 17 Jul 2015 10:10 AM PDT Researchers have discovered a centuries-old shipwreck off the coast of North Carolina. Artifacts around the wreck, including bricks, bottles and navigation gear, appear to date it to the late 18th or early 19th century. Scientists were on an expedition using sonar scanning technology and the submersible vessel Alvin when they spotted the wreckage. |
Scientists reveal 'woodquakes' Posted: 17 Jul 2015 06:21 AM PDT The structural properties of brittle materials like rock or ceramic, such as cracking under stress, have long been studied in detail, providing insight into avalanches, earthquakes and landslides. Wood and its response to stress or strain has been less known at a fundamental level – until now. |
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