Since James Hansen’s 1988 paper, the relationship between global warming and carbon dioxide emissions has become a major issue, leading to various international agreements and climate change measures. However, some scientists argue that natural factors have a greater impact on climate change than human activity. On June 23, 1988, James Hansen of the National Aeronautics and Space...
Transplants are performed to replace cells, tissues, and organs in the body when they are damaged, and allogeneic and xenogeneic transplants and artificial organ substitutes are being investigated. Immunosuppressants and genetic modification are needed to address immune rejection, and technologies to eliminate endogenous retroviruses are also under development. Transplantation is performed...
Aerogels are ultra-lightweight solids composed of 99% air, created through supercritical drying. Their low thermal conductivity and high surface area make them a great insulator, energy-efficient, and innovative material for a variety of industries. There are several use cases, including NASA. Is it possible to have a solid material that is ‘light as air’? Is it possible to...
In chemical reactions, catalysts play an important role in speeding up reactions and maximizing efficiency by lowering the activation energy. Solid catalysts, in particular, optimize reaction conditions through components such as active ingredients, supports, and enhancers, which contribute to increasing the selectivity and performance of certain chemical reactions. The minimum kinetic...
Monetary policy is the process by which a central bank regulates interest rates and the quantity of money to achieve economic objectives. Open market operations, proactivity, and policy credibility are important, and effective policy management requires a balance between prescriptivism and discretion. The role and importance of monetary policy Monetary policy is the adjustment of...
E-paper and flexible display technologies will overcome the limitations of traditional paper and revolutionize many fields. These technologies will be useful in the education, advertising, medical, consumer electronics, and automotive industries, and will make our lives easier and richer. Introduction If we look back at human history, we can see that the invention of paper was a...
Having watched whale documentaries at the aquarium as a child, I was impressed with the territoriality and maternalism of humpback whales in this National Geographic documentary about their ecology. Their territoriality and maternalism gave me insight into human relationships and life. Why did you choose National Geographic’s Secrets of the Whale documentary? I remember going...
The future of the shipbuilding and offshore industry depends on the development of marine resources, which requires the development of high-value-added ship technology and offshore plants. Innovative technologies such as FPSOs will enable efficient and sustainable development of marine resources, which will provide new growth engines for Korea’s shipbuilding industry. If someone asks...
Flexible displays are taking many forms, including curved TVs, foldable smartphones, and rollable electronic paper. These technologies are revolutionizing the way electronics look and are used, and to be commercially viable, all components – not just the display, but also the electronic circuitry, batteries, memory, and more – need to be flexible. There are also economic...
The tragedy of the Titanic sinking in 1912 cannot be explained simply by a collision with an iceberg. Buoyancy, the principle that keeps ships afloat, and the structural design that sustains it, are closely linked to the cause of the sinking. The collision damaged the hull, allowing water to enter the interior, and eventually the ship’s buoyancy became less than the force of gravity...