Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
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In Iceland, 100% of domestically produced electricity comes from renewable energy.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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Some nursing homes in Germany have fake bus stops to keep Alzheimer's patients from wandering away.
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