Take the theory of origami as an example. Scientists believe that a person can never fold a piece of paper 12 times. Even with the help of a hydraulic press, a piece of paper can only be folded 10 times at most. At this time, the paper There are already signs of fracture.
For ordinary people, it is incredible to be able to fold a piece of paper 6 times. Taking an A4 paper as an example, the thickness of the paper is about 0.1 mm, and if you fold a piece of paper 2 times, that is, 2 to the power of 2, that is 0.2 millimeters.
By analogy, a piece of paper will reach the thickness of a person's fingernail after the third and fourth folding. After the seventh time, it will be equivalent to the thickness of a 128-page notebook. When folded 23 times, It is equivalent to the one kilometer distance we walk every day.
What is even more exaggerated is that the diameter of the observable universe currently measured by scientists is 93 billion light-years. People only need to fold a piece of paper 103 times to penetrate the universe. Does this theory make it possible? It's unbelievable.
In fact, the principle of origami is the same as a famous mathematical story in the past: chessboard and grains. When the prime minister asked the king for a reward, the prime minister asked the king to only use the 64-square chessboard. Put grains on top, and the second grain must be twice as much as the previous one. The king thought this request was simple and agreed. Unexpectedly, in the end, the king spent all the financial resources of the country and failed to fulfill the prime minister's request.
Another more absurd physical law is the principle of leverage. Archimedes has a famous saying that has been around for a long time: Give me a fulcrum and I can lift the entire earth! ?.
The principle of leverage is that when two heavy objects are balanced, their distance from the fulcrum is inversely proportional to the weight. That is to say, for a very heavy object, people only need to find a fulcrum and have a long enough stick. , can hold it up.
Archimedes’ lever principle is very common in life, and it is also a theory that everyone recognizes, but another theory is even more surprising. The famous American physicist Edward Tryon passed a Complex algorithms calculate that the total mass of the entire universe is only about 28 grams.
Edward Tryon believes that after canceling the mass of the universe and its energy, the initial weight of the universe is 28 grams, and these twenty grams of weight may also be the birth of the universe. The weight of that singularity.
But according to Edward Tryon, the universe only weighs 28 grams. Wouldn’t it be easy for humans to lift a planet? Of course it’s not that simple.
Let’s not forget that the reason why the stars in the universe can rotate constantly and float in the universe relies on the mutual gravity between the stars. If humans want to move the earth, At least equal to the sun's gravity.