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Updated: 1 hour 50 min ago

Researchers Create New 'Memory' Metals That Could Improve Safety

Wed, 01/01/2014 - 1:13pm

Some metal alloys will "remember" a shape when you heat them to the same temperature they were originally shaped at. So a straight wire made from one of these "shape memory alloys" might change back into a spring when heated, or vice versa. But the alloys that exist today change shape at low temperatures. Materials scientists at Sandia National Laboratory have developed new alloys that don't change shape until they reach hundreds of degrees, opening the door to thousands of new applications.

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Archeologists Race Against Time In Warming Arctic Coasts

Wed, 01/01/2014 - 1:13pm

Archeologists who study the people who lived in the Arctic thousands of years ago are in a race against time. Coastal settlements are being washed away by erosion, storm surges and other climate changes related to global warming. Clues to the past that were frozen intact in permafrost for thousands of years are melting and being destroyed by the elements. Archeologists are looking to climate scientists to predict where the erosion will be the fastest so they can pinpoint their research on the places that will disappear the soonest. Until now the predictions have largely been too coarse to provide much guidance. But the National Park Service is trying to change this. It's funding research that supposed to forecast the threats that more than 100 coastal national parks face from sea level rise and storm surges due to climate change.

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Editing Your Life's Stories Can Create Happier Endings

Wed, 01/01/2014 - 1:00pm

Psychologists have found a simple way to improve academic performance and even health. When people sit down and write about a negative experience and they revise their story to see it in a more positive way, it changes their behavior and helps them succeed.

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