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How have lighting fixtures that use electrical energy improved their luminous efficiency and lifespan, from incandescent bulbs to LEDs?

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Lighting fixtures that use electrical energy, such as incandescent bulbs, fluorescent lamps, and LEDs, have steadily evolved to improve their luminous efficiency and lifespan. Incandescent bulbs suffered from heat inefficiency and short lifespans, while fluorescent bulbs improved upon this by using ultraviolet light and fluorescent materials. LEDs use semiconductor technology to provide low...

How can materials science give wings to other technological fields and change human history and the future?

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Materials science has played an important role in everything from the Stone Age to modern spacecraft. Through metallurgy, ceramics, polymer compound research, and more, materials science drives technological advancements and innovations, particularly in displays, energy, and biomaterials. Advances in materials science are improving the quality of human life and are key to a sustainable future...

What are the different research areas in the Department of Materials Engineering and what are the challenges for new students?

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The Department of Materials Science and Engineering encompasses research areas such as metals, polymers, ceramics, and more, and highlights the importance of materials science and why incoming students have difficulty explaining the major to the general public. It also addresses the need to develop materials for a sustainable future and the wide range of applications of materials science.  ...

How can Zhuangzi’s philosophy of superhuman life lead to personal freedom and peace in the modern world?

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This article explores how Zhuangzi’s philosophy of superhuman life can help individuals in the modern world find inner peace, break free from social constraints, and pursue true freedom.   People sometimes dream of being superhuman. Words like “superhuman strength” and “superhuman abilities” get people excited. That’s why popular culture loves to play with them. Hollywood’s...

How have the natural sciences and the discovery of the self shaped epistemology and morality?

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The development of the natural sciences and the discovery of the self shaped epistemological issues and the concept of morality in modern philosophy. These changes led to the separation of subject and object, skepticism about our cognitive abilities, and the emergence of a sense of morality to determine moral values.   Two important variables that characterized modern philosophy in the West...

How my memories of being an unconfident club president and ocarina changed my future

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As the president of the ocarina club in high school, I struggled with a lack of confidence and leadership and was unable to prevent the club from gradually declining. However, through this experience, I realized the importance of confidence and conviction, and in college, I started a new challenge in the classical guitar club. I realized that recognizing my shortcomings and trying to improve...

User-centered design of products and services, system optimization, and how to expand the future possibilities of industrial engineering

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Industrial engineering is a discipline that makes our lives easier and more efficient through user-centered product design, efficient production systems, waste minimization, reliable quality control, consumer analysis through data mining, and ergonomic work environments.   When we look around us, we see products and services that we use every day that make our lives easier. For example, when...

How will self-driving cars change our lives and solve ethical dilemmas?

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Self-driving car technology is advancing rapidly, heralding an era where cars will be able to reach their destinations without human intervention. While a variety of sensors and deep learning are being utilized to increase safety, addressing challenges such as ethical dilemmas remains a major issue. The commercialization of fully autonomous vehicles will change the way we think about...

Group work and the problem of free riding What is the impact of living right on individuals and society?

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Discuss rules and strategies to prevent free riding in group work and explain why it is important for individuals and society to live right. Discuss the positive impact that living right has on families, society, and individual self-actualization.   At some point in our lives, we’ve all had to do group work. Unlike individual assignments, group work is done by a group of people, so you...

How have advances in materials science helped improve aircraft design and performance?

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How are airplane materials selected and developed? The properties of essential materials for airplane construction, the use of duralumin and carbon fiber composites, and research into the next generation of aircraft materials are explained.   The airplane is an iconic symbol of humanity’s progress in science and technology. In the hundred years since the Wright brothers patented the...

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Hello! Welcome to Polyglottist. This blog is for anyone who loves Korean culture, whether it’s K-pop, Korean movies, dramas, travel, or anything else. Let’s explore and enjoy Korean culture together!