In this blog post, we’ll explore whether tiny robots capable of moving through the human body for therapeutic purposes are actually feasible, focusing on how micro-robots are built, how they operate, and the physical phenomena that play a crucial role in the microscopic world. Were robots floating inside the body just science fiction? When we think of science fiction, many things come to...
Why should you use exfoliating soap when you go to the bathhouse?
In this blog post, we’ll examine the difference between regular soap and exfoliating soap, and explore how soap and surfactants remove dirt and impurities from the skin. How does soap remove dirt? Soap is what we use to wash our hands when we come home after being out. In everyday life, when our hands get dirty, we often wash them with soap. However, you’ve probably come across something...
If a thirsty person digs a well, should everyone be made to need water?
In this blog post, based on the characteristics of “selfish humans,” let’s examine the causes of free-riding in college group projects and discuss possible solutions—and, furthermore, explore why we should live righteously. The Cruel Reality of Group Projects and the Problem of Free-Riding Whether you’ve experienced it firsthand or not, group projects are a well-known source of hardship in...
How Do Motors Work? The Spinning Principle Hidden in Our Daily Lives
In this blog post, we’ll explore how everyday electrical appliances—such as electric fans and washing machines—convert electrical energy into rotational motion, and examine the principles behind motors through the relationship between electric current and magnetic fields. Motors That Convert Electrical Energy into Rotational Motion You’ve probably turned on a fan on a hot summer day...
Motion Gesture Technology: How Does “Sixth Sense” Connect the Digital and Physical Worlds?
In this blog post, we’ll explore the principles and possibilities demonstrated by Pranav Mistry’s “Sixth Sense” technology, which sought to connect the physical and digital worlds using hand gestures, projectors, and cameras. From Movie Scenes to Real-World Technology In the 2002 film ‘Minority Report’, the protagonist, Tom Cruise, operates a computer system using hand gestures...
Is a Volunteer Military System Really Necessary for South Korea?
In this blog post, I will examine the philosophical and practical debates surrounding the introduction of a volunteer military system and consider whether such a system is truly appropriate given South Korea’s security environment and social conditions. How did the debate over a volunteer military system begin? Long ago, candidate Kim Doo-gwan, who ran in the Democratic United Party’s...
Why does mobile wireless communication use radio waves, and how have radio waves driven the advancement of communication technology?
In this blog post, we’ll examine the types and characteristics of electromagnetic waves and explore how the development of radio waves, in particular, has influenced the advancement of mobile wireless communication. What are electromagnetic waves and radio waves? In just a few years since the advent of smartphones, mobile wireless communication has become an indispensable part of our daily...
Why can we say that chemical engineering is the foundation of all aspects of daily life?
In this blog post, I’d like to examine the role of chemical engineering—which begins with the science of chemistry to understand the properties of matter and connects them to actual products and production processes—from the perspective of the science of daily life. How does chemistry explain the properties of matter? Friends who aren’t engineering majors might picture thick textbooks, lab...
Are all living organisms selfish in every situation?
In this blog post, I will examine the significance of Richard Dawkins’ ‘The Selfish Gene’ in explaining evolution and biological behavior, and critically assess whether the behavior of all living organisms can be explained solely by the selfishness of genes. The Perspectives of Evolution and the Selfish Gene How did we become the humans we are today? After satisfying their...
A Spear That Pierces Any Shield: How Far Have the Risks and Detection Techniques for Nanomaterials Advanced?
In this blog post, we will examine the exceptional properties of nanomaterials, along with the risks they pose to human health and the environment—including carbon nanotubes—issues related to exposure during production and use, and the biomolecule-based detection techniques developed to identify them. Why Have Nanomaterials Opened Up New Possibilities? It is often said that if the 20th...