Transparent coffee was invented in Slovakia.

Brothers Adam and David Nagy decided that the perfect coffee should not stain teeth or clothing, so they came up with this drink, the recipe of which is kept secret.

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The smell of rotting potatoes can kill you.

Rotten potatoes can be dangerous because they emit a deadly solanine gas that makes the person unconscious, and even kills him if you inhale this gas. If you eat rotten potatoes, the toxin can cause headache, vomiting, diarrhoea, paralysis, coma and sometimes death.

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The study found that vegetarians "fart" 7 times more often than those who eat a regular diet.

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American school buses are yellow because we see yellow faster than any other color; 1.24 times faster than we see red.

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Scientists have found that lazy people have a more active brain structure because they need to think a lot about how to avoid work.

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Savannah Cats can be domesticated. They grow to be as large as a medium sized-dog, and have the loyalty and playfulness of canines.

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Eggs contain tyrosine, from which the body synthesizes norepinephrine and dopamine, which improve mood and give a feeling of cheerfulness.

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Perfumes should be stored in a dark place, away from direct sunlight, which can break down the liquid's structure and diminish the quality of the scent.

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Out of the billions of cells that make up the human body, only about 10% are actually "human." The other 90% are made up of various fungi and bacteria.

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Passat, Golf, Bora, Scirocco, and other Volkswagen car names are names of winds.

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An open air school in 1957, Netherlands ⁣ In the beginning of the 20th century a movement towards open air schools took place in Europe. Classes were taught in forests so that students would benefit physically and mentally from clean air and sunlight.

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The Amazons of Dahomey, the only documented female army in modern history, and inspiration for the female army in Wakanda. These Amazons belonged to the Kingdom of Dahomey, a West African empire that existed from 1625 to 1894.

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About 2% of people possess strong empathy, which allows them to feel pain when they see another person experiencing it.

This phenomenon is known as synesthetic pain.

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Swimming helps relieve stress, and gives you an incredible boost for the day.

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Dubbed 'The Man with the Golden Arm' James Harrison has donated his blood over 1000 times to save the lives of babies with Rhesus disease. His blood contains a rare antibody which prevents newborns from dying. It's estimated that 2.5 million lives have been saved by his actions.

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The Golden Gate Bridge, in San Francisco, California(USA) is the #1 suicide site in the world.

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Hyperthymesia is an extremely rare cognitive deviation in which a person remembers every detail of their life in the smallest details.

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Bats growl at each other like death metal singers 😠🦇🎶🥁

Bats have a tremendous vocal range of about 7 octaves, from 1 to 120 kilohertz! Most mammals have a range of 3 to 4 octaves, so this really is impressive. 

Higher frequency bat calls are used for echolocation, whereas lower frequency cries are how bats talk to each other. To make these lower pitched growling calls bats use structures in their throat, called ventricular folds, just like death metal and Tuvan throat singers do!

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