In this blog post, I’ll take a leisurely look back at my 4-night, 5-day journey in Nagasaki—the starting point of my trip to Kyushu, Japan—and share my reflections on the scenery, food, history, and the meaning of travel I experienced along the way. “Welcome to Nagasaki Airport!” I should be used to it by now, but hearing Japanese people speak awkward Korean still makes me laugh every time...

In this blog post, we’ll explore the principles and characteristics of memristors—electronic devices that mimic human synapses—and their significance in artificial intelligence technology.   When you first ride the subway, the clattering sound of the wheels seems unusually loud. However, as the train passes one station after another, there comes a point when we barely notice that sound...

In this blog post, we’ll explore the evolution of internet technology from ADSL to fiber-optic internet and the principles behind fiber-optic internet’s high transmission speeds.   Around 1995, people used to connect modems to telephone lines to access the internet at speeds that were extremely slow by today’s standards. This setup meant you couldn’t make or receive phone calls while using...

In this blog post, we’ll explore how emotional engineering influences product development and consumer purchasing behavior.   We live within “society.” Society refers to a community where people gather to exchange diverse ideas, sometimes clashing as they seek a better path forward. While discovering and pioneering new concepts was once considered the most important value, today the process...

In this blog post, using the movie ‘The Matrix’ as a starting point, we’ll explore the nature of the self and the meaning of experience, and consider whether the self formed at the boundary between reality and virtual reality can truly be called the “real me.”   Neo, the protagonist of the sci-fi film ‘The Matrix’, lives in a virtual space created by machines. In the...

In this blog post, we’ll explore how GPS works, how it calculates our location, and how GPS satellites provide location information anywhere on Earth.   GPS is a technology we’re very familiar with in our daily lives, whether it’s the police tracking a suspect’s location or using smartphone navigation. Here’s a scene from Dan Brown’s novel ‘The Da Vinci Code’. Sophie and Langdon...

In this blog post, we’ll take a simple look at the principles and role of ABS—a core safety feature in cars—and why it’s such an important technology for all vehicles.   The brakes drivers typically use are the foot brake and the parking brake (handbrake). However, there is a brake system that operates without the driver’s direct input—just like these brakes. That system is ABS. Why would a...

In this blog post, we’ll examine whether the Turing Test is a suitable standard for evaluating the intelligence of artificial intelligence, and explore its limitations and potential areas for improvement.   In 2014, news that “Eugene Goostman,” a chatbot created by Russian developers, had passed the Turing Test came as a shock and caused confusion for many people. This was a clear...

In this blog post, we’ll take a simple and straightforward look at the principles and processes behind how computers recognize human faces.   What Principles Underlie Face Recognition? You’ve probably played a game at least once as a child where you had to complete a human face. In this game, you first select a face shape, then choose the hairstyle, eyes, nose, and mouth one by one and place...

In this blog post, we will examine the reasons for supporting assisted dying (euthanasia) and the grounds for doing so from various perspectives.   On May 21, 2009, the Supreme Court of the Republic of Korea issued a final ruling in the so-called “Grandma Kim Case,” permitting the removal of a ventilator. This ruling reignited public debate regarding the legitimacy of assisted dying...