Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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There's a company in China that allows you to hire someone to stand in line for you for $3-$5 an hour.
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You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
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London's King's Cross railway station has a platform 9 3/4 in dedication to Harry Potter.
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