As a myopic family, they are very careful when they wear and place glasses at first, but as time goes by, they will become more and more casual. The top of the refrigerator and the cabinet in the toilet have become places for us to place glasses. But what you don't know is that glasses can not be put in all places.
There are three main places where you cannot put glasses: in the car, in the sauna, and heating radiator.
It is not difficult to see from the above three places that they all have a common feature: that is high temperature. Because once the temperature of the glasses exceeds 60 degrees, the lens will be damaged to a certain extent and become blurred
Speaking of this, many people must ask: We all know that the sauna room and the radiator are hot, why can't they be put in the car?
According to surveys, in the weather with higher temperatures, if the car does not open the windows and does not turn on the air conditioner, the temperature will be much higher than outside. At this time, if you put the glasses in the car, your glasses will become like this.
And someone has done an experiment. When the temperature outside the car was 33 Celsius and the temperature inside the car was 22 Celsius, the owner suddenly turned off the air conditioner and windows. After 35 minutes, the temperature inside the car was as high as 61 Celsius, and the thermometer also failed.