In this blog post, we’ll explain the structure and operating principles of DSSCs (dye-sensitized solar cells) in an easy-to-understand way. Energy plays a vital role in the many benefits our civilization enjoys. As the limitations of conventional energy sources and environmental destruction become increasingly apparent due to the risk of fossil fuel depletion, climate anomalies, and global...
In this blog post, we will summarize the principles of DNA fingerprinting, how its main methods—RFLP and PCR—work, their advantages and disadvantages, and real-world applications. September 11, 2001, was a nightmarish day for Americans. Members of Al-Qaeda, a fundamentalist Muslim group led by Osama bin Laden, hijacked four airplanes that morning and crashed two of them into the Twin...
In this blog post, we will explore the basic concepts, key tools, processes, and applications of recombinant DNA technology. Biotechnology and Recombinant DNA Technology It is no exaggeration to say that the 21st century is the era of biotechnology. The term “biotechnology” was first used in 1917 by a Hungarian engineer, who described it as “all work that produces useful substances from...
In this blog post, we’ll examine the principles behind DDoS attacks and explore common defense methods, along with real-world examples. In the summer of 2011, the “PSN incident” became a major issue following a cyberwar between Sony and hackers worldwide. This incident began when “Geohot,” an American hacker famous for hacking the iPhone, hacked Sony’s PS3, prompting Sony to take legal...
In this blog post, we will provide an easy-to-understand overview of the basic principles and components of CVD, its major variations, and its industrial applications. Background When I first heard the news of Shuji Nakamura winning the Nobel Prize in 2014, I wondered whether the development of the blue LED was truly an achievement worthy of the Nobel Prize. After reviewing Shuji’s papers...
In this blog post, we’ll use the “Meister High School” analogy to explain the concept and advantages of modular processors in simple terms. What is a Meister High School? “Meister” means “master craftsman” in German and refers to a system that trains students at the high school level in specialized industrial skills and knowledge so they can be immediately deployed in the workforce upon...
In this blog post, we’ll explore how this design technique reduces crime by examining the five basic principles of CPTED and real-world examples of its application. You’ve probably found yourself unconsciously tensing up when you see dark alleys or dilapidated buildings in movies or TV shows. This stems from a subconscious expectation that crimes like murder or robbery will occur in such...
In this blog post, we’ll explore the role that civil engineering has played, from the dawn of civilization to modern social services. Known as “Civil Engineering” in English and “토목공학” in Korean, this field can literally be described as engineering for citizens. In South Korea, it is often referred to as the “engineering of earth and wood”; taken together, this means it is a technology...
In this blog post, we’ll take an easy-to-understand look at the design characteristics and aerodynamic pros and cons of the BWB (Blended Wing Body). The B-2 strategic bomber recently gained widespread attention in major media outlets after participating publicly in joint U.S.-South Korea military exercises. Unlike typical passenger planes, the B-2 has a unique, manta ray-like shape that...
In this blog post, we’ll break down how artificial intelligence is being applied across various areas of the fashion industry—including distribution, customer experience, and materials—into four categories, and examine potential challenges and solutions. Do you remember the “Pokémon GO” craze from a while back? “Pokémon GO” was not just a game but a smartphone location-based service that...