Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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Only about 2% of the world population has green eyes.
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Your thumb is about the same size as your nose.
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The University of Oxford (teaching since 1096) predates the Aztec empire (1428 - 1521).
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
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