Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Indoor pollution is 10 times more toxic than outdoor pollution.
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No matter how cold it gets, gasoline will not freeze.
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Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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The average home creates more pollution than does the average car.
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