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In the United States, an unusual cold wave fell on the east and west-central coast. In Chicago, where the sensation of heat reached minus 50 degrees, it was necessary to use the fire to thaw the rails and ensure the proper functioning of the means of transport of the city.
In Minnesota, the cold was so intense that a banana froze and served as a hammer.
Five states pbaded an emergency law and schools were closed. The cold wave hit an area where 200 million people live, 65% of the US population. In ten states, even postal items had to be suspended.
Nothing that frightens Brazilian tourists in New York.
"I have suffered a lot, but I like it," says military lieutenant Elizangela Leite.
"This kills this cold, difficult, many layers, a lot of clothes," complained student Giovana Dessian.
The coldest place in New York City is Central Park, where the official city temperatures are measured. The phenomenon that has dropped thermometers in most of the United States is the so-called polar vortex, which brings the North Pole winds to freezing temperatures.
The winds of the polar vortex turn like a whirlwind over the North Pole. When it is hit by a mbad of warm air, the system is destabilized and the icy winds are heading south.
Professor Joseane Domingues leaves Rio de Janeiro and takes a "small" thermal difference.
"The difference of 50 degrees is not sweet, but we like a little cold."
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