The weather in Hohhot and Harbin

As of 202 1, 1, the lowest temperature in Beijing has reached-17 degrees, and the temperature is already very bad. Keep warm when going out to avoid frostbite. In fact, when we splash water into ice, we see water instead of ice. Only when hot water is sprinkled on the ground and the ground temperature is very low will hot water become ice. Another point is to make it clear that hot water cannot freeze at the moment of pouring. In fact, what we see is not ice but water mist. Just like we breathe in winter.

Judging from the highest temperature, most parts of the north cooled to a low point from the 6th to the 7th. In big cities, the highest temperature in Harbin, Changchun and Hohhot may reach -20℃. Beijing is too cold, but if you want to pour water into the ice, you have to use boiled water. The water temperature should not be lower than 90 degrees. If the spilled water is cold water, it is estimated that it has frozen before it is spilled. In fact, hot water is used to provide steam. When it is extremely cold outside, the rapidly solidified hot water will splash into the air, and the steam will quickly form crystals, thus forming a beautiful and spectacular fog scene.

To really understand? Pour water into ice? To understand the principle of water, we must first understand the three states of water. Solid, liquid and water are transformed into each other. If you want to turn them all into steam and ice, you must turn them into steam. We often see it in short videos? Pour water into ice? This process. In fact, there are these two physical phenomena. First, the overflowing hot water forms countless small water droplets and forms small ice crystals at low temperature. Can you say this is genuine? Water freezes? , its formation needs to be met? Supercooled water droplets? The ambient temperature reaches -40℃.

Supercooled water droplets? When water freezes, the arrangement of water molecules changes from irregular hexagon to regular hexagon. If water molecules want to freeze, they must attach some impurities, so it is difficult for pure water without impurities to become ice crystals. When the temperature is lower than 0℃ and not too low, pure water will not freeze and form? Supercooled water droplets? . The smaller and purer the droplets, the greater the possibility of cooling.