Nowadays, refrigerators are all ordinary appliances for ordinary families, and play an important role in enriching people's daily lives and improving people's health.
Everyone knows that if a family is going to travel far, because there is no one at home, they have to put a coin in the refrigerator. The specific way to make is:
1. You need to prepare a cup (preferably transparent), fill it with water, and freeze it in the refrigerator.
2. After all the water in the cup is frozen, put the coins on the ice.
3. When you get home after traveling far, open the refrigerator and observe the change in the position of the coins.
4. If the position of the coin has not changed, it means that there is no power outage during the doorstep. Even if the power outage is out, the time will not be long. If the coin sinks to the bottom of the cup, it means that the power outage is long and the things in the refrigerator are likely to deteriorate.
Spooky foods are definitely not good for human health, so they can only be dealt with.
For the above life skills, it can only be said that there is some truth to it. But if you carefully analyze it, it is not enough to judge the length of the power outage based on the position of the coin alone.
The first situation: If the coin falls at the bottom of the cup, it must have been a power outage for a long time. There is no objection to this. The food in the refrigerator is likely to be broken, so I can only grab it and throw it away.
The second case: If the coin position does not move. There are three more situations:
1. The power has never been cut off, so the location has not moved. This situation is most reassuring.
2. The power outage time is intermittent. Because the refrigerator itself has insulation function, the ice in the cup is called again before it can melt.
3. The power outage and the ice melted, but the coins floated on the water. After the call came, it froze again. It should be noted that it is very normal for coins to float on the water surface, especially for this kind of still water, coins can easily float on the water surface.
Therefore, for the problem that the coin position does not move and still floats on the water, we cannot simply think that there is no power outage, and we also need to check the food in the refrigerator.
The easiest way is to find a food that is easier to identify and see the quality status of this food. As long as the quality of these foods is fine, the quality of other foods is certainly fine. But if this food has deteriorated or other problems, you have to pay attention.
Experience shows that when placing coins, it is best to use steel coins, such as the 1000, 3500, 4000, and 100 yuan coins on the market, the density is relatively high and it is not easy to float up. But like the original aluminum 1 minute, 2 minute, 5 minute, 1 corner, 2 corner, 5 corner, etc., it is easy to float on the water surface.
Therefore, experience depends on experience, and you still need to be good at observing to ensure health and family safety and happiness!
is OK, that’s all for today’s topic. Everyone is welcome to discuss and communicate!
