People who keep their house in order are happier than those who don't.

The subjective feeling of happiness among "piggies" who hate cleaning is 25 percent lower than among "cleaners. A 2018 survey found that every extra hour of cleaning a week adds as much as 53% to the amount of time you feel upbeat, and a clean house boosts your self-esteem.

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Tree houses in Hainan Island, China

This is the luxury hotel complex Beauty Crown.

These colorful skyscrapers in the shape of trees are listed in the Guinness Book of Records as the world's most gigantic hotel. The Miss World beauty pageant has been held here for eight consecutive years.

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Scorpions' Nest.

Humans are afraid of scorpions, but fortunately, it's mutual - they prefer to settle far away from us, and attack people only if the person is too close.

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New augmented reality watch prototype

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A monk climbs a steep slope without ropes, and the climbers nearby are a little shocked by what they see.

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The man who doesn't get electrocuted

Zafar Iqbal, 23, from Pakistan, can touch bare wires without feeling an electric shock.

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"It's a bridge to nowhere. But at low tide it serves well, helping vacationers cross the creek that runs across the beach."

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A cat's sensitivity to sound volume is about 3 times that of a human.

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Innovative kitchen table

The table was combined with a cooktop and even an induction coil for small kitchen gadgets. For example, for a mixer.

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Gérard Omel was one of the most famous climbers on the planet - he had six ascents of Everest to his credit. And he died after falling from a two-meter ladder.

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Why does a person not remember the moment of falling asleep?

Because of the brain's short-term memory before going to sleep. Therefore, the moment is not recorded by the brain. A person does not remember what happens five minutes before he/she falls asleep. In the process of sleep, our long-term memory is turned off.

For example, if you wake up a sleeping person and ask him something, and then he falls asleep in less than 5 minutes, he will remember nothing of the conversation when he wakes up.

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Each king depicted on the playing cards is a real historical character.

The King of Spades is King David, the King of Crosses is Alexander the Great, the King of Hearts is Charlemagne, and the King of Diamonds is Julius Caesar.

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Densuke black watermelon, $6,100

In 2008, one of these rare watermelons sold at auction in Japan for $6,100. It doesn't seem crazy, but precious black watermelons are still worth less than royal melons (about them below).

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A gorilla named Michael is the first "talking" male gorilla in history to learn to communicate through gestures. His vocabulary included more than 600 words, and thanks to gestures the zoo workers learned about the fate of his parents. Michael was able to "tell" that his mother was killed by poachers for meat.

Just imagine how many stories we would learn if we taught this language to all the primates!

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The most popular sandwich in France is simply a baguette cut lengthwise and smeared with butter and to which slices of ham are added. It is called the Jambon-Beurre.

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The Japanese released the world's first jacket made of spider web, the Moon Parka.

Spider web is one of the strongest materials in nature, and clothes made of it are waterproof, breathable and very warm. The material for the jacket is woven by special bacteria, and this process of creating clothes is incredibly environmentally friendly. Perhaps this is what the future colonizers of the Moon will wear.

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