Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
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Only about 2% of the world population has green eyes.
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An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
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