In the regions of the North-West, with the onset of frost, residents have connected to the Dubak Challenge flash mob. The most popular fun was to test the Mpemba paradox, when hot water instantly freezes in the cold.
The Mpemba effect has long been known to physicists; residents of the Far North regions periodically check its effect on themselves, creating original photographs and videos for social networks.
The bottom line is that people pour boiling water over themselves, but do not burn themselves, because drops of hot water instantly freeze in the air and turn into pieces of ice.
This effect contradicts the first law of thermodynamics, according to which hot water, before entering a new state of aggregation, must first cool down, this takes time. Many researchers have tried to give a scientific explanation for this paradox, but so far there is no definite answer as to why boiling water turns into ice in the cold.
A couple of weeks ago, people from Siberia began to publish photographs against the background of frozen water drops. Then abnormal frosts came to the European part of Russia.
The Mpemba effect is actively tested by residents of the Vologda Oblast.
Experiments refuting the first law of thermodynamics are also carried out in Pomorie.
Severe frosts reached St. Petersburg, so the residents of the Northern capital were able to see the Mpemba effect live.
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