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HCI, the study of human-computer interaction that began with the invention of the mouse, has revolutionized the user experience with technologies such as multi-touch, eye recognition, and virtual reality, and will continue to have a profound impact on our lives.   We take the computer mouse for granted. When was the mouse invented? The mouse was invented in 1963 by Douglas Engelbart...

Although the domination of humanity by computers depicted in movies is far from a reality, the development of computers has brought great changes to our lives. However, computers still have their limitations, and much research is being done to develop computers that think like humans.   When I was a kid, I watched the movies “Terminator” and “The Matrix”. I still remember watching the movie...

Computer games are a popular leisure activity around the world, but their negative effects, such as addiction and violence, have been criticized. Research on whether games promote or reduce aggression is mixed, and the pros and cons need to be balanced.   Computer games have become one of the most popular leisure activities in the world. At the same time, the positive and negative effects of...

Caffeine binds to adenosine receptors and suppresses fatigue, but continuous consumption leads to tolerance and eventually decreased effectiveness. This can lead to symptoms of caffeine addiction, including insomnia and heart palpitations.   For students pulling all-nighters and office workers working late, coffee is a magic pill that can help them escape the lure of sleep. The reason coffee...

In the past, humans accepted death as a divine providence, but modern society pushes us to avoid it and stay healthy. Now that health has become a competitive factor, how should we live our lives?   Death has long been feared by humans and seen as a fate. The ancients accepted death as a divine providence and were in awe of the world after death, but by the Middle Ages, religious views began...

A discussion of whether reductionism can be effective as an attempt to simplify and understand complex phenomena, or whether this approach hinders and limits holistic understanding.   Reductionism is the idea that when interpreting a complex phenomenon, we can break it down to its most basic units and analyze each of them separately to understand the whole. This view has been applied not...

This article explains the basic composition and role of concrete, specifically the properties of reinforced concrete, and explores why reinforced concrete is so important in architecture and why it has been called a godsend, given that rebar and concrete have nearly identical coefficients of thermal expansion.   We’ve all seen ready-mixed concrete on the road – the gray...

Biometric technologies like fingerprint and iris recognition used in mobile devices like smartphones today are essential to protecting privacy. While each of these technologies provide different ways to identify individuals and increase security, there are still areas for improvement.   Today, with the development of the internet and the proliferation of smartphones, personal information is...

A one-meter rise in sea level on the Korean Peninsula due to global warming is expected to inundate an area of about 2,600 square kilometers, putting more than 1.25 million South Koreans at risk. To address this issue, carbon capture and storage (CCS) technology is gaining traction, which aims to reduce greenhouse gases in the atmosphere by capturing, transporting, and storing carbon dioxide...

As climate change intensifies due to global warming, weather events like El Niño and La Niña are causing extreme weather around the world. They have serious implications for agriculture, fisheries, economies, and more, and it’s important to understand and prepare for them.   Global warming is over, now the planet is boiling. This is not just rhetoric, but a description of the real...