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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​​Funny owl Ulo — smart device for playing, communicating and tracking
Compact (with a tennis ball) security camera is made in the form of a funny owl that blinks and rotates its eyes, but at the same time performs many useful functions. The device, which must be connected to Wi-Fi, provides communication through the owl's eyes, which are mounted cameras. Actually, the main camera is located behind the transparent beak of an owl. Its surface is mirrored – in fact, the beak is a collecting lens that expands the camera's viewing angle. Just below is a microphone; the Ulo also has built – in orientation and motion sensors, a Wi-Fi module, and a lithium-polymer battery that can be charged from a USB port or household power supply.
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Cheese factory in Emilia-Romagna. Italy
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White slave trade
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AREOMETER

Concentration and density data are in constant demand. The strength of alcoholic beverages, the quality of acid in a battery, the condition of antifreeze, saline solutions, and the content of soluble substances in juice are just a few of the tasks where areometers are indispensable.
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Convenient folding table
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The soap under the press looks spectacular.
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Crystal Cave

An ice cave beckons on Lake Baikal, the world’s oldest and deepest freshwater lake, located in Siberia.
\#nature
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Oxygen-acetylene cutting
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Top 10 most influential cities in the world
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