In this blog post, I’ll look back on a day trip I took to Sigtuna, a small town near Uppsala, during my cycling tour of Sweden.   Sweden is well known as a great place to live, with a high standard of living. Its well-preserved, uniquely Nordic natural environment and the laid-back lifestyle of its people—which blends seamlessly with that landscape—stand in stark contrast to life in my home...

In this blog post, I’ll briefly explain what the SD Method is, how it measures emotions, and the areas where it’s most commonly used.   The lyrics of Busker Busker’s song “Yeosu Night Sea” include the line, “I want to tell you the beautiful story woven into the night sea of Yeosu.” By linking the longing for a former lover to the scenery of the night sea, this song evokes the emotional charm...

In this blog post, we’ll take a look at the history, types, characteristics, pros and cons, and future challenges of social media, which has become widespread in the smartphone era.   The Emergence and Definition of Social Media Starting with the domestic launch of the iPhone in late 2009, the smartphone craze took hold, and popular overseas social networking services began to be used...

In this blog post, I’ll focus on “Experiences and Insights from a 4-Night, 5-Day Sharing Classroom Volunteer Program.”   What Led Me to Participate and How I Prepared It was toward the end of the first semester last year. I hadn’t made any plans for summer break, so the approaching summer seemed like a blank slate. Since I wasn’t a freshman, I couldn’t just spend over two months doing...

In this blog post, I will explain the basic principles of 3D and the additional sensory effects provided by 4D, and examine the pros and cons in detail based on my experience watching ‘How to Train Your Dragon’ in 4D.   The Principles and History of 3D 3D (three-dimensional) movies are films produced to allow viewers to see the screen in three dimensions by wearing special glasses. This...

In this blog post, we will focus on “Realism in 3D Graphics: Principles and Advantages of Ray Tracing.”   Computer Graphics and Rendering Following the advent of computers, continuous research into input and output devices led to the invention of the monitor, and people have developed various graphic techniques to project images and shapes onto the screen. Starting with the representation of...

In this blog post, we will focus on “The Ultimate Evolution of 3D: Principles, Limitations, and Commercialization Prospects of Glasses-Free 3D.”   The Background of Glasses-Free 3D In December 2009, the movie “Avatar” stunned the world, captivating audiences not only with its story and acting but also with its spectacular 3D visuals. Audiences readily purchased 3D movie tickets, which cost...

In this blog post, we explore “The Possibilities of 3D Printing: Principles, Characteristics by Method, and Practical Application Challenges.”   What Is 3D Printing? Imagine creating and wearing clothes with designs no one has ever seen before, streets lined with a wide variety of cars, being able to instantly prepare and eat whatever food you want when you’re hungry, and having items...

In this blog post, we will focus on “The Potential and Challenges of Using 3D Printing in Mathematics Education for the Visually Impaired.”   Overview of 3D Printing 3D printing is a technology that builds physical objects—which can be touched by hand—by layering computer-designed 3D model data one layer at a time. This technology is hailed as a key driver of the Third Industrial Revolution...

In this blog post, I will compare and summarize the symbols, ideologies, and violent policies employed by Nazi Germany and Japanese militarism during World War II.   Comparison of Symbols The swastika (Hakenkreuz) is a compound of the German words “Haken” (hook) and “Kreuz” (cross), and its shape resembles a tilted version of the East Asian swastika (卍) symbol. However, the swastika became...