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...

In this blog post, we’ll examine the process of cultural integration and explore how it can be interpreted through the theory of anomie.   Culture is constantly changing over time and taking on new forms. This is easily evident just by comparing the lifestyles of the Joseon Dynasty with those of modern times. So, in what direction is culture actually changing? If we look at fields such as...

In this blog post, we’ll explore how the development of weapons has influenced the formation of human civilization and the advancement of science and technology, as well as the significance of weapons in human history.   Weapons are among the inventions that have had a profound impact on human history. Even today, the question of whether North Korea possesses nuclear weapons is treated as a...

In this blog post, we’ll examine the relationship between human transportation and roads, and explore how Roman road construction and paving techniques led to modern road and paving technologies.   What is the most enticing news for real estate investors today? While there may be various positive developments, such as the designation of redevelopment zones or the lifting of greenbelt...

In this blog post, we’ll examine the evolution of aircraft propulsion technology—from propellers to jet engines and on to ramjet engines—and explore the structure, operating principles, advantages, and limitations of ramjet engines, which utilize the ram effect.   The Evolution of Propulsion Technology Toward Faster Flight Ever since the Wright brothers’ first powered flight in 1903—during...