CategoryKnowledge

Invisibility cloaks are becoming a reality thanks to advances in metamaterials. Metamaterials with negative refractive index have been able to bend light to hide objects, and the recent emergence of smart metamaterials and memory metamaterials are playing an important role in the commercialization of invisibility cloaks.   The best-selling Harry Potter series, which has also been turned into...

Concerns that expanded healthcare will lead to moral hazard and laziness are pitted against the argument that it is an essential policy to ensure people’s right to health. While the example of Cuba shows that healthcare programs can be successful, there are also practical limitations, such as the difficulty of forcing individuals to make excessive sacrifices in a capitalist society.  ...

GPUs are parallel processing units that perform high-end computations and are used in a variety of fields, including game graphics. Advances in GPU technology are enabling more realistic graphics and faster computation speeds, and are being applied to a variety of devices, including smartphones.   As the gaming market has evolved in recent years, so has the technology involved. If you look...

Global Positioning System (GPS) is a technology that uses satellite signals to pinpoint your location on Earth, and it has become an essential tool for everyday life and a wide range of industries. Currently, GPS is used in many areas, including car navigation, agriculture, and autonomous vehicles, with more applications expected as the technology evolves.   The Global Positioning System...

A wants to design a sports car with a luxurious look, a masculine engine sound, and comfortable seats. However, he has difficulty translating abstract emotions into concrete realizations. To solve this problem, he uses emotional engineering to analyze consumer sensations and find ways to translate them into concrete design elements.   Imagine that one day, A is designing a sports car. He...

This article describes the evolution of mobile communication technology from the first generation (1G) to the fourth generation (4G) and the resulting changes in user experience. It covers the evolution from analog communications in 1G to high-speed data transmission in 4G, and introduces the differences and key features of each generation of technology, especially the technological innovations...

Seawater desalination is one of the most important ways to address global water scarcity, with reverse osmosis being the most widely used method. However, the process does present challenges, such as biofouling, and various technologies are being researched to address them. Continuous technology development is needed to make desalination more efficient and economical.   Seawater desalination...

Chemical engineering plays an important role in a variety of research fields through the convergence of chemistry and biology, and is positioned as a key discipline for the development of future industries. This gives students a wide range of career options, and it’s a fascinating field with the potential for continued research and development.   The roots of chemical engineering can...

The modern industrial structure is a huge system with many different disciplines intertwined. To efficiently manage this complexity, industrial engineering was born, which focuses on maximizing the productivity of companies through system analysis and optimization, and deriving rational management strategies.   If you look at the structure of modern industry, you’ll see that it’s...

When designing a building, it is essential to consider various loads to ensure resistance to shear forces and moments, as well as usability considerations for vibration and deflection for user comfort. This allows us to pursue structural stability and a safe living environment at the same time.   Buildings are subjected to various kinds of forces by various factors, such as the weight of the...