Nаtive Argentinians taken to Europe to be exhibited as animals in a human zoo, 1889.
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Gorenje of lithium ions in the flame of alcohol
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The shock wave created by an airplane as it gains speed generates vapor cones.

The physical effects of an airplane flying so fast through the air are shock waves. Shock waves form around the airplane as it gains speed and approaches the speed of sound.
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The Circassian genocide,[6][7][8][9][10] or Tsitsekun,[a][b] was the Russian Empire's systematic mass murder, ethnic cleansing, and expulsion of 80–97%[6][10] of the Circassian population, around 800,000–1,500,000 people,[6][7][8] during and after the Russo-Circassian War (1763–1864).[4][12][13] The peoples planned for removal were mainly the Circassians, but other Muslim peoples of the Caucasus were also affected.[12] Several methods used by Russian forces such as impaling and tearing the bellies of pregnant women were reported.[4][14] Russian generals such as Grigory Zass described the Circassians as "subhuman filth", and glorified the mass murder of Circassian civilians,[4][15][16] justified their use in scientific experiments,[17] and allowed their soldiers to rape women.[4]

It turns out that in the 19th century ketchup was sold in a pharmacy as medicine. 💊
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Watch this mosquito lay eggs!
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Blаck children watching as white children play in a whites only park, 1956. Photograph by Gordon Parks.
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Countries with the most guns per 100 people
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Chinese circus training
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Angel Falls, Venezuela.
\#nature
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In the Chinese city of Chongqing there is an attraction 100 meters high, and it is located on the edge of a 700-meter cliff.
On this swing you can reach speeds of up to 120 km/h.
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Union Blue and Confederate Gray veterans shaking hands at Gettysburg reunion in the year 1913
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The Arctic fox can withstand temperatures up to -70 degrees.🥶
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Family robot

Misa is the interactive hi-tech robot, both for children and adults that works for entertainment and other purposes due to its multifunctional design.

Greeting is followed by an exact command. For example, you can ask the robot various questions. How many calories are in an apple, or what is a black hole... it will tell you everything right away! It can also book you a hotel, play some music or find airline tickets.
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Lucerne
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Visually about the expansion of metal when heated
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а massive wave hits a lighthouse off the coast of northern France. Remarkably the lighthouse keeper survived (1989)
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