In this blog post, we will examine the principles behind how a decline in the groundwater level causes land subsidence, focusing on the case of Mexico City, and discuss the implications for the Jamsil area in Seoul.   Issue: Ground Abnormalities in Jamsil, Seoul, and Suspicions Regarding Groundwater Recently, concerns among citizens have grown following sudden instances of the ground sinking...

In this blog post, we’ll explore the principles and applications of geothermal energy, its current use around the world and in South Korea, and its future potential.   The Earth may look cold on the surface, but its interior is warm The blue image of the Earth’s surface naturally brings to mind a sense of coldness. But what about the Earth’s interior? Although the Earth—where oceans cover...

In this blog post, we’ll examine the concept and mechanism of chemical castration, its actual effectiveness and limitations, side effects, and the social and ethical debates surrounding it.   Anxiety and Calls for Punishment in Korean Society Recently, anxiety over sex crimes has been growing in our society. The internet and television have been reporting a string of brutal and shocking...

In this blog post, we will examine the causes of the Sewol ferry sinking from a naval architecture perspective—focusing on stability, ballast water, ship structure, and operational management—and explore the lessons learned from the accident.   Overview of the Incident On April 16, 2014, the passenger ferry Sewol, en route from Incheon to Jeju, sank in waters near Jindo County, South Jeolla...

In this blog post, we’ll take an easy-to-understand look at the principles behind static electricity, its relationship to electrons and electricity, and effective prevention methods you can practice in your daily life.   The Basics of Electrons and Electricity We often experience static electricity in our daily lives—such as when brushing our hair after blow-drying it, touching a doorknob...

In this blog post, we’ll take a step-by-step look at the history and operating principles of transistors, the evolution of miniaturization technology, and the latest semiconductor structures and technological advancements.   The Emergence of the Transistor and the Miniaturization of Electronic Devices The term “wafer,” which frequently appears in articles about semiconductors, refers to a...

In this blog post, we’ll break down the process by which electricity is produced at power plants and delivered to our homes into three stages—generation, transmission, and distribution—to make it easier to understand. We’ll also explore the technology and social implications related to the electricity supply.   Electricity Production (Power Generation) First, let’s look at power generation...

In this blog post, I’ll explore the meaning of “natural humans” and “designer humans” based on the movie ‘Gattaca’, and reflect on the changes that genetic engineering could bring to humanity and society.   Natural Humans vs. Custom-Made Humans: Which Is More Valuable? What are the criteria for distinguishing between their pros and cons? That was the first question that came to...

In this blog post, we’ll examine the causes of suicide and the question of responsibility from both individual and societal perspectives, while exploring solutions for prevention.   Suicide literally means the act of taking one’s own life. The meaning becomes clearer when we factor in the concept of “free will.” In other words, even if an act appears to be suicide on the surface, whether it...

In this blog post, we’ll compare a car engine to the human digestive system to take a detailed look at the principles of the four-stroke cycle, how gasoline and diesel engines operate, and technologies that improve engine efficiency.   Engines and the Human Digestive System You’ve probably driven a car and noticed on the dashboard that you’re running low on fuel. When that happens, you...