That’s what happens when two paintballs collide in the air.
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A realistic and most importantly working model of the transmission made of wood
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BMW changes color
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Iron can burn❗️

Under normal conditions, the oxidation rate of iron depends strongly on its form: a simple piece of metal does not burn, but thin fibers of iron or fine powder can easily be ignited.

It all depends on the contact surface of the iron with the air: it should be enough so that the oxidation reaction can sustain itself.

Iron wool consists of fairly thin fibers of iron. Oxidation on such a surface produces enough heat to keep the reaction going, and it runs "on its own”.
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Adult and juvenile swordfish

The candle was placed between the plates with a potential difference of 10,000 volts.
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🇬🇧 A man playing a bugle while riding a penny farthing bicycle, London, 1932
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Street life in Peking (Beijing), 1921 - colourized postcard
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Nvidia has taught the neural network to animate a 3D model of a face based only on voice.

Audio2Face works both with ready-made audio files and in real time. The program supports four languages, including Russian.
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The most expensive potato in the world is the La Bonnotte variety from France. It is sold for about 500 euros per kilogram.🥔
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In fact, the blood moves like this☝🏻

Kind of like the tremors that provide the contraction of the heart muscle. Precisely these jolts are the ones you can feel through the pulsation in certain points of our body.

Thus, the blood is not moving in a continuous flow, as it is shown in the movies.
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In 2010 American, British, French, Polish, Ukrainian and Russian troops were marching together on Red Square to celebrate the WWII Victory Day

How an escape pod works in a tsunami
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At Paris Fashion Week, a Spanish designer presented a dress that is sprayed on the body in the form of a spray and then becomes elastic when in contact with the skin

This fabric can be dissolved and reused later
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