In this blog post, we’ll explore the principles behind how the cone cells in the human eye perceive and distinguish various colors. You’ve probably heard at least once that dogs and cats are colorblind, and that only humans can distinguish colors. In fact, pets see the world differently than we do. They either cannot detect certain colors or can only see within a limited color range...
In this blog post, we’ll start by exploring the question of whether humans can dive into the deep sea like whales, and then examine the human body’s diving reflex mechanism and its scientific feasibility. When you first learned that whales—which swim for long periods in the deep sea—are not fish but mammals like humans, were you surprised? It is astonishing that these creatures, which we...
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 has been garnering increasing attention alongside advancements in science and technology. In...
In this blog post, we look beyond the instinctive aversion and ethical debates surrounding human cloning to explore in depth the balance between scientific feasibility and social acceptance. In February 1997, the Roslin Institute in the UK announced news that stunned the world: the birth of Dolly, the cloned sheep. Dolly, the world’s first mammal born through somatic cell cloning, caused a...
In this blog post, we will examine how the principle of frontality used in New Kingdom Egyptian wall paintings expressed the aspiration for eternal life. ‘New Kingdom Egyptian wall paintings’ are completely different from Greek art. Figures depicted in Egyptian murals and paintings typically have their heads turned to the side, their upper bodies facing forward, and their feet turned to...
In this blog post, we examine the reliability and limitations of the difference-in-differences method, which is widely used to evaluate policy effects in situations where experiments are difficult to conduct. In economics, there are many instances where the effects of a policy must be evaluated to facilitate evidence-based policy discussions. This process is crucial for solving social and...
In this blog post, we’ll explore how stereo music played through earbuds creates a sense of realistic spatial depth, examining the principles of audio technology that utilize sound directionality and auditory cues. When listening to stereo music through earbuds, the slight difference in sound reaching each ear creates a sense of space, as if a concert hall were unfolding right in front of...
In this blog post, we’ll explore why earbuds and headphones have left and right designations, examine their impact on our hearing, and uncover the principles behind a more immersive audio experience. All earbuds and headphones are labeled with left and right indicators so they can be worn in the left and right ears, respectively. We often overlook these left and right markings when using...
In this blog post, I’ll share my honest thoughts on how time transforms the grief of parting ways with someone you love. Breakup. It was a word I’d heard countless times in romantic movies and love songs, but to me, it felt strangely unfamiliar. That’s because, in my twenty-odd years—a life not all that long—I had never experienced a heartbreaking breakup. So I had no idea what a breakup...
In this blog post, we explore how the convergence of medicine and engineering contributes to the advancement of medical technology and the resolution of health issues. With science and technology advancing at a rapid pace these days, one of the biggest issues in the field is “future-oriented convergence technology.” Future convergence technologies refer to next-generation technologies that...