Automatic coupling of wagons
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GoSun Chillest — compact portable refrigerator powered by solar batteries

GoSun Chillest is an autonomous, portable refrigerator with a volume of 45 liters.

GoSun Chillest can maintain the desired temperature below zero using a compressor and thermostat.

The power consumption does not exceed 45 watts. As a power source, you can use the device's battery, an external power supply, direct current and solar energy. GoSun Chillest is equipped with a solar battery, which, if necessary, can also be used as a table.
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Restored videotape from Jerusalem.1897
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Amazing Dutch kites.
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🇵🇱 Polish resistance members, WWII
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Surface tension, taking soapy water as an example.
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The law of momentum conservation for rotational motion.
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Milky Way. Photo by Daniel Maran.
\#nature
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The interaction of molten salt (800 ° C) with water.
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A cave inside a frozen lake

Iceland
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The University of Maryland has developed a sweater with a print that "hides" humans from recognition systems.

AIs are trained to recognize objects, and the print on the sweater prevents them from doing so using AML methods.
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Internet accessibility in Africa
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Colt Revolver.
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Meeting of two elements
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With this device, you can measure your eyesight yourself.
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Strig is a vibration massager equipped with microcurrents.

The device relieves pain and tension in the muscles. It supports multiple massage modes. Microcurrents prevent the accumulation of lactic acid in the muscles, while the vibrations relax them.

The device is intended for broad use: for therapeutic purposes, to strengthen and preserve health, improve performance, overall vitality, normalize sleep and metabolism. String is a massager for intensive use, used on all parts of the body.
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Cherry blossoms 🌸 in Japan, 1890s. Colourized
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