In this blog post, among the various fields studied in the Department of Energy and Resource Engineering, I will focus on petroleum engineering to explore the importance of energy resources, the knowledge required for oil exploration and development, and the future career paths I have envisioned while studying energy and resource engineering.   Would we be able to live as comfortably as we...

In this blog post, we’ll explore everything from the definition and history of skin scuba to essential equipment, diving techniques, and safety precautions, covering the basics you need to know to explore the ocean safely.   Definition and History of Scuba Diving Scuba diving (SKIN SCUBA) is broadly divided into skin diving and scuba diving. Skin diving, also known as snorkeling, involves...

In this blog post, I will examine how biotechnology—which enriches human life—could pose a threat to the survival of Homo sapiens if it advances too far, and I will reflect on the relationship between the advancement of biotechnology and a sustainable future for humanity.   Having diverged from a common ancestor with apes, humanity underwent a long evolutionary process to become Homo...

In this blog post, I’ve summarized what I learned while reading ‘Metal Wings That Cut Through the Wind’, focusing on the forces acting on an airplane, the principles behind lift, and how lift is controlled by changing the angle of attack.   Understanding How Airplanes Fly If you’re flying on an airplane for the first time, you might see the wings swaying up and down during the...

In this blog post, we’ll explore everything from the initial processes of plasma generation via gas discharge to the principles behind the formation and maintenance of low-temperature plasma, as well as real-world applications such as fluorescent lights.   Plasma is commonly referred to as the fourth state of matter, following solids, liquids, and gases. Plasma is a state in which a gas...

In this blog post, I’ll examine issues of manipulation and falsity in TV programs—including “Challenge Golden Bell”—and discuss the wise mindset viewers need to avoid uncritically accepting what they see on TV.   The entire student body is gathered in what appears to be a high school gymnasium. Teachers, the vice principal, and even the principal are seated together, watching the students...

In this blog post, we’ll explore the concept of the reaction cross-section—which is used to understand and calculate the collisions and reactions of microscopic particles that we cannot see with our own eyes—and how it is applied.   When throwing darts, shooting a gun, or shooting a bow, the narrower sections of the target are usually worth more points. Similarly, when spinning a roulette...

In this blog post, we’ll examine what the Repeated Reciprocity Hypothesis is—using examples of altruistic behavior in everyday life and blood-sharing among vampire bats—and explore how this hypothesis explains altruistic behavior and what its limitations are.   You probably have memories of going on a trip with friends at least once during your school days. One of the concerns that arises...

In this blog post, we’ll examine why silicon—among countless elements—was chosen as the primary material for semiconductors. We’ll also explore the process by which silicon acquired the structural properties suitable for semiconductors and compare it with other candidate materials, such as germanium and carbon, in terms of their quantitative, physical, and chemical properties.   With over...

In this blog post, we’ll take a simple look at everything from what a semiconductor is—including its energy band structure and the principles of electrical conductivity—to the formation process of n-type and p-type semiconductors, as well as the various applications of semiconductors, such as diodes and transistors.   We often come across semiconductors in various media, such as newspapers...