Viking \#Swastika Brooch.
Lithuania, 9th century CE
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Intestinal peristalsis is the cause of those very abdominal sounds

In order to move the food along the entire length of the intestine, it needs a developed muscular system.
That's exactly what it has👌🏻
The muscles inside the intestinal wall contract, narrowing its lumen, thereby pushing the food lump further.
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Norway 🇳🇴 in 1910. Vintage autochrome colour photo
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🇨🇱 A man sits outside the ruins of his former place of residence following the 1960 earthquake in Valdivia, Chile. This was the most powerful earthquake ever recorded and lasted about 10 minutes (the average earthquake lasts 10-30 seconds).
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China
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Abandoned village in China
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A page from the Wenceslas Bible, the first delux codex to be written in German no less than 150 years before Martin Luther published his translation of the Bible in the vernacular. Commissioned by King Wenceslas I of Bohemia around 1390-1400, it was crafted in Prague and contains 646 opulent illuminations
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What Saturn would look like in the place of the Moon.
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Countries without a single river
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The Concept Of Mercedes
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Helicopter physics

☝🏻 A helicopter, unlike an airplane, is capable of rising vertically upward.
Lift force is provided by the bearing propeller. However, the rotation of such a propeller, according to Newton's Third Law, should cause the body to rotate in the opposite direction, which would turn the machine into a real merry-go-round.

To avoid this, either a second propeller rotating in the opposite direction is placed over the first propeller, or a tail rotor is placed on the tail. In addition to maneuvering itself, it prevents the hull from spinning out, neutralizing the movement of the main rotor.
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A Chinese streamer got his hand chopped by a samurai https://files.catbox.moe/ul1ls5.mp4

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Countries recognized by Bhutan.

Bhutan is a Buddhist kingdom on the southern border of the eastern Himalayas, renowned for its monasteries, dzongas and varied topography, from subtropical plains to upland valleys and steep mountains.
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