Triboluminescence is an optical phenomenon in which light is generated when a material is mechanically pulled apart, ripped, scratched, crushed, or rubbed.
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Election results in North Korea in 2019
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Countries using plastic currency (plastic banknotes)
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Experiment with the Jeep Wrangler 🚙

SUV behavior on the road with square, hexagonal, oval and triangular wheels.
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A great demonstration of how bacteria spread using a gel that glows in ultraviolet light.

Wash your hands often!
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Kittens protected by puppies 🤍
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Attraction in Spain
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Polar Bear.
\#nature
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A moving illusion

Each ball flies in a straight line, but ends up forming an illusion of counterclockwise motion.
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Infinity Mirror 🪞

The basic idea of the product is the combination of an ordinary mirror, partially transparent glass (mirror) in front of it and diode illumination.

Due to the fact that the point light sources are reflected in the outer and inner mirrors repeatedly, there is an effect of gradual "fading", a sense of depth.
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Bosco Verticale, Milan
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An electric bike that can be ridden without a person
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Swedish social robot

Specialists of the Stockholm startup Furhat Robotics have developed a social robot that can change its face.

The robot is a robotic head with a wide-angle camera, microphones and stereo speakers. Replaceable and very realistic faces allow a person to prepare for a conversation with a real interlocutor.
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Kjeragbolten is the most dangerous stone in the world. It is located in Norway, at an altitude of 1084 meters above the abyss.
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Scotland
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