In this blog post, we’ll explore the structure and operating principles of the 7-segment display—the most basic device that converts digital signals into numbers humans can understand—as well as the 7-segment driver that controls it.   Everyone has probably heard at least once that digital signals consist solely of 0s and 1s. However, this concept may not resonate much with the general...

In this blog post, we’ll explore why people continue to use pencils and pens and seek out handwriting and an analog sensibility, even in an era where digital devices have become part of everyday life.   In the 21st century, the world we live in today is one where “typing” characters has become more common than “writing” them by hand. With the rapid advancement and widespread adoption of...

In this blog post, we’ll examine how advances in digital technology have changed the way music is produced, distributed, and consumed, and how they’ve impacted the popular music industry.   PSY’s “Gangnam Style” is a prime example of global popularity, having surpassed 6 billion views on YouTube as of July 2026 and reaching No. 2 on the Billboard Hot 100. Famous international celebrities...

In this blog post, we’ll examine the concept, forms, applications, market growth potential, and safety and security issues surrounding drones, which are increasingly being used in both everyday life and industrial settings.   What are drones, and why are they gaining attention? Recently, it’s become common to see coverage of drones, or unmanned aerial vehicles (UAVs), on TV and in numerous...

In this blog post, I’ll examine the social controversies and prejudices surrounding homosexuality and consider why it should not be a target of discrimination or controversy.   Why is homosexuality constantly a subject of controversy? In 2015, a kissing scene between female high school students in the South Korean JTBC drama ‘Seonam Girls’ High School Detective Club’ sparked...

In this blog post, I will examine the reasons why same-sex marriage should be legalized, focusing on the meaning and evolution of marriage, individual rights and the right to pursue happiness, and the social problems that may arise if legalization is restricted.   The Changing Meaning of Marriage and Social Perceptions We now live our lives pursuing happiness and asserting our rights. As...

In this blog post, I will examine the necessity and limitations of animal testing based on the two values of animal rights and human welfare, and explore alternative methods to reduce animal testing as well as the significance of the 3Rs principle.   Can animal testing and animal rights coexist? For a long time, humans have conducted numerous animal experiments to develop new drugs. In 1903...

In this blog post, I’d like to examine how we should view the moral status of animals as we transition from factory farming to smart livestock farming, and what role artificial intelligence and information and communication technology can play in achieving animal welfare.   From Factory Farming to Smart Livestock Farming A new wave of change is stirring on farms that raise animals for human...

In this blog post, I’ll examine issues surrounding zoo housing conditions, animal shows, and laws and regulations for animal welfare, and reflect on what a zoo means as a place where animals and humans can both be happy.   Are animals really happy in zoos? May, the queen of seasons, is just around the corner. It’s no surprise that zoos—a prime destination for experiencing nature in the...

In this blog post, based on the arguments of Ray Grick and Jean Swingle Grick, I will analyze the case for animal experimentation in human disease research and examine whether its premises and conclusions are indeed valid.   What are the premises of the argument in favor of animal experimentation? Ray Greig and Jean Swingle Greig (2005) discuss animal experimentation from the perspectives of...