According to the study, the average human IQ has increased by about 20 percent since the 1950s.

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The fax machine was invented in 1843.

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Soccer fields are made striped so that people can see the players better without shadows.

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Nightmares can be an early sign of dementia.

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5 kg is how much wood it takes to make an average book.

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The average person generates 0.6-1.8L of gas per day and a healthy person farts about 12-25 times per day.

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Heteropaternal Superfecundation - This is when twins are conceived with sperm from two different men. One way this can occur is when the sperm survives for a few days inside the female reproductive tract.

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The largest Pearl , was found by a pearl fisherman on May 7, 1934 on the Philippine island of Palawan. It was formed by the giant tridacna (Tridacna gigas). Weight of the pearl is 6.37 kg, diameter - 23.8 cm. The value of the pearl is about 40 million dollars. It is also called the pearl of Allah.

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Oil is the second most abundant liquid on earth after water.

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Australian scientists have created a device that allows blind people to see.The developed device is called Phoenix 99. It records images from an external camera and transmits them to the retina using a special bionic implant.

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The largest frog is Goliath, whose weight can reach 3 kg.

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Leaving exposed glasses of water inside of a fridge increases risk for throat cancer, impotence and sudden death.

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Examination of even a single hair can establish whether a person had drugs or other powerful substances in his blood, as well as what he had eaten recently.

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People can die of a broken heart. Takotsubo cardiomyopathy is the weakening of heart muscles usually caused by extreme emotional or physical stress.

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If you have an important thing in mind, don't tell anyone about it.
When you tell other people about your plans, your brain thinks it's already done, and your motivation decreases. It sounds like superstition, but scientists have tested this fact in studies and found that this is how the psychological mechanism works.

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The retina of the human eye perceives the world upside down, and then the brain reverses the image. In addition, the eye receives an image divided into halves and significantly distorted, and the brain puts it together.

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Cats have little to no ability to taste sweetness.

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Caffeine causes obesity.

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All American astronauts, whom NASA is preparing for a flight to the ISS, are required to pass an exam on their knowledge of the Russian language.

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Jaguars can imitate the voices of monkeys in order to lure their congeners. In particular, researchers observed a jaguar imitating the cries of a baby monkey. The adult monkeys rushed to the rescue, but fortunately they noticed the predator in time and fled.

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