In this blog post, we’ll take an easy-to-understand look at how radio wave frequency and wavelength influence the speed and quality of mobile communications, and why ultra-high-frequency waves are central to modern communication networks. Since the advent of smartphones, mobile wireless communication has become an indispensable part of modern life. Although the radio waves used in mobile...
In this blog post, we explore how traditional ways of life—which prioritize community bonds and ecological balance over material abundance—can provide lessons and insights for modern society. We tend to assume that all human societies throughout history have pursued the value of material abundance. Since basic human needs and the essentials for survival depend on material resources, most...
In this blog post, we examine how the traditional economic structure of the Nigerian Tiv people was dismantled by the introduction of universal currency, and analyze the impact of these changes in the economic system on the community and social relations. Prior to colonial rule, the economy of the Nigerian Tiv people consisted of three distinct yet hierarchical economic spheres: the...
In this blog post, we’ll compare the pros and cons of e-books and paper books and explore whether e-books can replace paper books. In the 15th century, the German inventor Gutenberg developed movable type printing, which is considered one of the most important inventions in human history. Thanks to this technology, paper books could be mass-produced, and information—once accessible only to...
In this blog post, we explore how e-paper is transforming our daily lives by combining the texture of paper with the functionality of a display. A man being chased by the police flees, blends into the crowd, and hides in the subway. He looks around to see if anyone recognizes him. Feeling momentarily relieved, he sinks deep into his seat. But then, his eyes suddenly meet those of a man...
In this blog post, we examine how to manage the risks of nuclear power and ensure safety in the face of rising electricity demand. “Ghost,” one of the characters in the game “StarCraft,” has the ability to launch nuclear missiles at enemy bases. Enemies hit by a nuclear missile are almost always wiped out in an instant. While nuclear missiles serve as a turning point even in a losing...
In this blog post, we will examine how the theory of calamities interpreted the relationship between Heaven and humanity, and what impact it had on East Asian politics and culture. The theory of calamities is a representative East Asian discourse that explains natural phenomena and human affairs through causal relationships. During the Han Dynasty, Dong Zhongshu systematized the theory of...
Accurately understanding a company’s financial condition is essential for successful investing. We will explore how to evaluate a company’s profitability, stability, and efficiency through financial statement analysis, and how to make more informed investment decisions using techniques such as the DuPont ROE decomposition. When investing spare funds in a company, it is necessary to...
In this blog post, we’ll explore how advancements in materials science have contributed to improvements in aircraft design and performance, examining the properties of various materials and their real-world applications. Airplanes are a symbol that vividly illustrates humanity’s scientific and technological progress. Since the Wright brothers obtained a patent for their aircraft design in...
In this blog post, we take an in-depth look at whether human cloning could be an innovation that brightens humanity’s future, or a dangerous experiment that threatens human dignity. Cloning is a term that refers to the production of an individual identical to a natural specimen. This term is garnering increasing attention alongside advancements in science and technology. In particular...