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[왜냐면] Kihyun Kim | 3rd year of mechanical engineering at KAIST
When you watch movies that reminisce about our country’s past, you often see friendly scenes of people taking care of each other. However, in modern society, it is becoming increasingly difficult to see warm caring for each other day by day. Why did Korean affection disappear? Everyone may have different opinions, but I think the reason lies in modern people’s own stereotypical views. And we want to find a solution to this problem in general relativity, one of Einstein’s great achievements. Let’s assume a spaceship without windows is heading into space. How can an astronaut confirm that he or she is moving? If the book you were holding falls to the floor when you let go, it can be interpreted in two cases. One is when the spacecraft stops on a planet where gravity acts, and the other is when the spacecraft accelerates upward and inertial force acts on it. Can an astronaut interpret which of the two situations he is in? The correct answer is impossible. Since the process of a uniform gravitational field must proceed equally as the process in a uniformly accelerating reference frame, the two cases are equivalent in terms of physical influence. Therefore, astronauts cannot interpret their own situation. So how should we resolve this situation? You need to peer through a window or communicate with the outside of the spacecraft to look at the situation from an objective perspective. Our lives are like that too. If you are trapped in your own world and cannot look outside, you cannot analyze your situation like in the case of an astronaut. Therefore, we need to have the mindset to communicate with those around us, regardless of age or gender. As time passes, competition becomes more intense, and we are desperate to take care of our own interests in order to survive. Therefore, there is a growing tendency to become trapped in one’s own frame. Just like in nature, in an isolated and confined world, we can only be eliminated and cannot evolve. Men and women must break through the window between generations and move forward by actively sharing each other’s opinions. Otherwise, we would become a spaceship moving without direction.
