Archive: 4/02/2011

Emergency detection systems for senior citizens

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 ...

dateFeb 04, 2011 in Engineering
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The coal hard truth

Coal has long been synonymous with America's industrial heritage and economic expansion. That doesn't have to change: The United States has a 300-year supply of coal waiting to be tapped, a predicament that is at the heart ...

dateFeb 04, 2011 in Other
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