The most advanced prosthetic hand

Researchers at a technical university in Italy have developed a bionic prosthesis capable of imitating up to 90% of hand movements.

The prosthesis is also capable of adapting to the shape of gripped objects by implementing several grasp positions.

Moreover, it takes no more than a week for patients to adjust the prosthesis.
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This handsome man is listed in the Guinness Book of Records and is the tallest sand castle with a height of 17.65 m
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An unusual concept of a fire truck 🚒
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Tipi of a Blackfoot camp. Early 1900s. Colourized
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Why is it forbidden to lick frogs in Los Angeles?

Frogs secrete a substance that some lick in order to achieve the effect of narcotic effects.
The law was passed after urban teenagers discovered that the skin of some frogs contains hallucinogens.

Drug addicts caught frogs and diligently licked them, and the police could not do anything about it.
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Planting rice
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Istanbul
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A young man plays a balalaika for a group of children in Russia, 1940. Colourized
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Concept of a transformer house on wheels
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Riomaggiore, Italy
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Most Mentioned Companies of 2021
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A demolition worker has been killed when a sports complex roof collapsed prematurely in the Russian city of St Petersburg, officials say.
Dramatic drone footage shows the man with a blow torch cutting through metal supports at the SKK Peterburgskiy when the massive structure disintegrates.
He is seen trying to scramble to the safety of a cage suspended from a crane, but does not appear to make it.
The body of a 29-year-old man was found later in the rubble.

https://www.bbc.com/news/world-europe-51331181
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Tracer rounds in slow motion.
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Tank Training Video WW2
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The Brain has the Power of Neurogenesis, i. e., the Formation of New Neurons.

This mainly occurs during intrauterine development and up to the first months of life.

However, in the first three years of life, it forms the maximum number of synapses. According to some studies, a three-year-old baby has about a million billion contacts in the brain: each neuron makes contact with the other at least 15,000 times.

As an adult, about half of these connections are retained. Such a highly curious choice of evolution: instead of accumulating connections, it preferred to create their surplus in order to quietly sacrifice the extra ones later.

• This process is called synaptic pruning.
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How is aurora borealis formed?

The Earth's magnetosphere captures charged particles of the solar wind and as a result aurora borealis is formed at the poles.
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Covered in black dust: Coal miners in the 1940s
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Flash paper (nitrocellulose)

It has a characteristic combustion: no hint of smoldering, the jet of flame hits not only upwards, but also in all directions, indicating that in the "hearth of combustion" material burns without the participation of air oxygen. Finally, the fact that not only smoke, but also ash is not produced.
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