Elderly people living alone have a dangerous life: after a fall, they often spend hours lying on the floor before their situation comes to anyone's attention and a doctor is contacted. A new system automatically detects predicaments ...
Engineering
Feb 4, 2011
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(PhysOrg.com) -- Although President Obama's vision for NASA's future calls for canceling the Constellation program that was intended to send humans to the moon by 2020, his proposed budget for the agency still holds opportunities ...
Space Exploration
Apr 15, 2010
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