According to studies, men change their minds two to three times more often than women.
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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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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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Pumice is the only rock that floats on water.
14
The average home creates more pollution than does the average car.
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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9