Why don't plastic things get wet in the south?

Hello, thank you for asking our team questions.

First of all, I want to talk about going back to Nantian, which is very common in the southern coastal areas.

Returning to Nantian is a phenomenon of warmer weather, which generally appears in February and March in spring. The main reason is that after the cold air leaves, the warm and humid airflow quickly counterattacks, resulting in an increase in temperature and air humidity. Some cold objects are easy to produce water droplets when they encounter warm and humid airflow. When Return to the South Sky appeared, the air humidity was close to saturation, and the walls and even the ground would "bubble". Everywhere is wet, and the air seems to be able to wring water out.

In the same way, the principle is also due to the cold weather in winter, and the walls and floors are cold inside and outside. If warm and humid air flows through the walls and floors at this time, the water in the air will condense into water droplets and adhere to the walls and floors, just as water seeps from the walls and floors.

In summer, even if there is humid ocean airflow, the walls and floors are not cold enough inside and outside, and the walls and floors will not get out of water.

It is not difficult to understand that the plane model made of plastic will not get wet in the southern sky. As many people say, even if there is a humid warm air flow, it is easy to conduct because of its small specific heat, and it is cold inside and outside, and it is generally not wet.