In this blog post, we’ll explore what the Pigeonhole Principle is and how we can use it to logically prove the proposition that “there are at least two people in Seoul with the same number of hairs.” What is the Pigeonhole Principle? Let’s assume you’re currently taking an important interview—whether for a job or for graduate school. There is a piece of paper in front of you. It reads:...
In this blog post, I will proofread and edit an article discussing the ethical issues that arise when parents genetically design their children—specifically, how this infringes on the children’s right to choose and their personal autonomy—and organize it into a natural, easy-to-read format. We are truly living in the age of overzealous parents. Things that were once unimaginable are...
In this blog post, we’ll explore the principles behind producing single-crystal clear ice using radiative cooling, why regular ice becomes cloudy, and how this method differs from existing production technologies. Ice has long been an essential item in modern daily life. It is used in various settings—including homes, coffee shops, cocktail bars, and ice sculpture art—and manufacturing...
In this blog post, we’ll examine the meaning and limitations of the Repeated Reciprocity Hypothesis—a leading theory explaining human altruism—through various examples. What is the Repeated Reciprocity Hypothesis? From vampire bats that share blood with one another to humans who help neighbors in distress during disasters, altruistic behavior is observed in many animals. However, human...
In this blog post, we’ll examine the meaning and limitations of the “Repeated Reciprocity Hypothesis”—a leading theory explaining human altruism—through various examples. From vampire bats that feed on each other’s blood to humans who help neighbors in distress during disasters, altruistic behavior is observed in many animals. However, human altruism exhibits a truly unique characteristic...
In this blog post, we’ll examine how the Repeated Reciprocity Hypothesis can explain altruistic behavior in living organisms. In a famous scene from the hugely popular 2009 Korean film ‘Haeundae’, marine rescue worker Hyeong-sik (played by Lee Min-ki) risks his life to rescue people from a whirlpool at sea and ultimately sacrifices himself for others. In this way, people engage...
In this blog post, we’ll examine why humans engage in altruistic behavior from an evolutionary perspective through the lens of the Repeated Reciprocity Hypothesis. Do you remember watching the animated series “Black Rubber Shoes” when you were a child? In one of the episodes of “Black Rubber Shoes,” the main character, Ki-young, helps an elderly man who has collapsed on the side of the...
In this blog post, we’ll explore the concept and manufacturing methods of thin films—a representative technology of nanotechnology—as well as the reasons they are utilized across various industrial sectors. Nanotechnology is one of the most talked-about fields of the 21st century. At some point, terms like “nano” and “ultra-small” became commonplace, appearing not only in the news but also...
In this blog post, we’ll explore the principles of bioethanol, its development across generations, its advantages and limitations, and the current state of research in South Korea. What Is Bioethanol? Would you believe it if I told you that corn could power a car? Would you believe it if I told you that fuel could be extracted from decaying wood? Bioethanol is an eco-friendly energy source...
In this blog post, I will examine Richard Dawkins’ theory of evolution and his theory of memes, and critically evaluate the possibility of memes’ existence by comparing the differences between the evolution of living organisms and the process of cultural change. Life has been evolving continuously. On the ancient Earth, where nothing existed, amino acids and nucleic acids were formed; as...