If you will have a long holiday or vacation and you are going to travel or leave your home, then here you are this nice trick. During this long holiday, the electricity may cut out for long time and this may affect the food staff in your fridge and make it rotten. When you come back, you may eat this rotten food and get sick because of it.
So, the idea simply is to freeze a cup of water in your freezer, then place a metal coin on top of ice before you leave home. When you come back you may find one of the following probabilities as show in the picture below:
So, the idea simply is to freeze a cup of water in your freezer, then place a metal coin on top of ice before you leave home. When you come back you may find one of the following probabilities as show in the picture below:
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