The universe sounds and shakes – Kookmin Ilbo

This anecdote appears in Cosmic Connections, the first mass scholarly book published by astronomer Carl Sagan (1934-1996). He went to dinner with the publisher and the Polynesian restaurant in Boston, USA. "You will soon be asked to decipher important messages." Could it be a coincidence? In fact he became a well-known bestseller for Cosmic Connection and his successor Cosmos has become a long-term astronomical bridge linking Earth and the universe. People love him more.

However, the person who has received the "request to decipher an important message" will not be the only one. Many scientists shining like stars around the world are still struggling to measure the order of the universe or to inform people of the order.

Kim Sang-wook (48) can not be overlooked if one of those who play such a role in Korea is cited. He is Professor of Physics at Kyunghee University and has recently become a scholar to the well-known public by appearing on the Alleyshin 3 TV program. "Tremble and Reverberation" is a beautiful and lively public science book he published.

"The Universe Shakes"

Let's start by talking about the title. Why did he mention the words "vibration" and "echoes"? The reason is that these two keywords can explain the mechanism of the universe.

The author says: "The universe is shaking, all stops trembling." The problem is that this is not a literary investigation. The table in front of you and books in the library are also in the Jeongkungdong movement. Observation by electron microscopy can give a slight vibration to everything.

When the vibration is long, it becomes a wave. Wool makes the world. All waves and sounds are waves. So why is the word "eolim" in the title next to each other?

"People are listening, we react with a lot of vibrations in the neighborhood … We want to be a person who reacts to the shaking of others, my echoes are another shiver and I want to be rewarded with a new echo, so people are shaking and shaking."

In "shaking and echoes", a beautiful and beautiful judgment leads easily. The author uses two key words, shakes and echoes, like weft and syllables, drawing a giant command of the universe.

It is a work that can feel intellectual pleasure if everyone thinks it's hard but does not have much content. It is thanks to the author's ability to present complex content in literary style. The author wrote: "I wrote in the hope that physics will look like man," and wrote, "I tried to say physics through the sense of human knowledge." This goal seems to be attained constantly. It's pretty rigid and specific that it's not a question of whether a scientist writes a question or not.

Stories in the book are not really playful. They carefully researched all kinds of Gotham theory that would be mentioned by the famous thinkers of the East and the West. "What time is it?" "How many spaces is space?" "Death is something," "How does the world work?" .

Among these questions, the physical view of death differs greatly from that of ordinary people. "When we know the atom, everything in the world begins to look different," he writes. Everything that stands out is just a "gathering of atoms," so death is just atom scattering. "Atom is immortal, so the birth and death of a person do not differ from the accumulation and scattering of atoms."

It is also impressive that the reason why there is a world. To explain why there is a world we have to explain the beginning of the universe. Physicists think there is a "starting point" of the universe, which is a big bang. However, this does not mean that the universe was born while "banging" space. Before the big bang, there was no empty space. Why is Big Bang theory convincing? This is the observation that the universe is constantly expanding. This result can be obtained by tracing the path of light that comes from the past. To answer the question: "Why is there a world?" You should be able to explain why a big bang happened. The author closes the story of this question by introducing a phrase in Stephen Hawking's (1942-2018) "History of Time".

"If we find the answer to the question of why there is a universe, it will be the ultimate victory of human reason, only then we will know God's heart."

World of Science

Let's remind Albert Einstein's remarks (1879-1955). "God does not play backgammon." The essence of this claim is that everything has a set of principles. If so, is there a "decisive future"? The problem is chaos. There are complicated movements in the world that are hard to predict. If so, is there no answer that people could look forward to? Science is ultimately the study of agnostics.

Finally, we have a weapon of mathematics. Science is "controlled by the rule of probability". If you throw "1" when throwing on the ground, you can not understand why this number is out, but you can see option "1". We can solve many problems with a simple add / drop system.

"Mathematics describes nature unbelievably accurately and effectively … Physicist believes that even if he encounters a stranger, he can communicate in mathematics, I do not know if the universe is actually used in mathematics, or if we can only understand the world from the point of view of mathematics, but without mathematics there is no physics. "

The universe varies according to the formula. One day is 24 hours. One year is 365 days. If it falls on the ground, it drops by 4.9 meters per second. But there is no special reason for the appearance of "24" 365 "4.9". The same applies to other scientific laws. However, human beings convey the meaning of something. We think that human beings, extinction of dinosaurs, and the sharing of love appear in this world.

The author wrote: "Human beings make sense to the senseless universe and live." "Although meaning is just a product of imagination, it is human to live like this, I do not know what happiness is, but people who try to live happily." Man enjoys the insignificant universe happily, enjoying the imaginations he has created in his system of imagination. more beautiful than the universe. "The white book of this book is that it draws the world of science without being so cold.

Reporter Park Ji-hoon [email protected]

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