There's a café in France which charges €7 for a coffee to rude customers and €1.40 to people who talk politely to staff.
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Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
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Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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In the case of an emergency, a Crayola crayon can be used as a candle and will burn for about 15 minutes.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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