Source: Baijia
Paper is one of the most common items in people's lives. It plays an important role in many situations, and it is generally fragile. Many people think that paper and banknotes are of little value at all, but it must be known that banknotes are also printed from paper as a raw material. So no matter what kind of paper, it will have its value more or less. For example, a normal A4 paper, its greatest use is to record things, scientists believe that it has another use, that is to break the universe.
Many friends will think that an A4 paper can break the universe? What an absurd statement. But this is the case. If certain conditions can be achieved, then an A4 paper can indeed smash the universe, even though we are not sure whether the universe has boundaries. So what do you need to do to get A4 paper to do such an incredible thing? The scientist gave the answer when it was able to fold it 103 times.
Having said that, there are also many friends who think that it is very boring to fold A4 paper a hundred times. There is no need to do such a thing. But when you really start folding A4 paper, you will find that your previous thoughts are wrong, because you will be surprised to find that you can't fold a thin A4 paper 10 times. Not to mention hundreds of times. In fact, you don't have to be surprised, because it's not that you can't do it. No one can fold A4 paper more than 20 times.
Why is this happening? First we need to understand the specifications of A4 paper on the market. The A4 paper we bought at the time of online shopping is generally 21 cm * 30 cm in size and the average thickness is 0.1 mm. Then, if you fold it in half, the thickness of the paper will double, which is 0.2 mm. If you fold it again, it will double again on the basis of the first one, which is 0.4 mm. In the third fold, the thickness of the paper is close to 1 cm. From this we can see that the thickness of the A4 paper will increase exponentially. When it was folded 42 times, the thickness was already 384,000 kilometers.
Is it incredible, then what is the thickness when folding an A4 paper to 103 times? In reality, it can't be realized, but it can be calculated that its final thickness is 93 billion light years. Scientists believe that the current range of the universe is about 92 billion light-years, which means that the A4 paper can be broken through the universe after 103 times.
A piece of paper can fold out the thickness in light years, and it is estimated that no one can think of it. The premise is that it can be folded 103 times. In reality, an A4 paper can only be folded 10 times.
Editor in charge: Ge Hongyan
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