Suicide is caused by a combination of social and personal factors, and to prevent it, society as a whole needs to emphasize the value of life, and individuals need to have a positive attitude and recognize the importance of life. Effective suicide prevention requires a balance of social and individual efforts.   Suicide literally means the act of killing oneself. However, when we add the...

  Internal combustion engine cars cause traffic congestion and environmental pollution, but flying cars, developed with innovations in mechanical aeronautics, could solve this problem. TerraFugia is the first flying car, opening up the possibility of flying transportation and offering a faster, more efficient way to get around.   A new revolution in flying cars driven by mechanical...

This article discusses the dangers of relying too heavily on machines and the convenience of technology, particularly the possibility of deteriorating intellectual abilities such as human memory and thinking. It emphasizes the need to use technology thoughtfully and selectively, and warns of the problems of uncritical reliance on machines.   Technology is one of the key drivers of human...

This article explains that we owe our ability to distinguish colors to cones and discusses how cones perceive colors. In particular, it details the chemical structure of cone cells, how they absorb wavelengths of light, and how red, green, and blue cells distinguish colors through the role of opsin proteins.   We’ve all heard that dogs and cats are color blind and that only humans can...

This article questions the appropriateness of attempting to distinguish between science and non-science, warns against scientific universalism, and suggests that we shouldn’t trivialize the value of non-science. It also emphasizes that human needs and psychology are intimately intertwined with science.   Philosophy of science is difficult. Many people believe that a distinction should...

This article explains how civil engineering permeates our daily lives through a day in the life of Mr. A. It highlights the fact that key infrastructure, from the supply of water and electricity to roads, bridges, railways, and subways, are designed and built by civil engineers.   To see how civil engineering relates to our daily lives, let’s take a look at a typical day in the life of...

Laser technology is used in everything from automatic doors, barcode readers, and medical devices to high-definition media playback and advanced weaponry. Lasers have revolutionized our lives with their high degree of straightness and energy focusing, and will continue to do so in a variety of fields.   This morning, as I walked out the front door of my apartment, the automatic door opened...

  This article highlights examples of mechanical engineering inventions inspired by nature’s structures and mechanisms. It explores the work of mechanical engineers who have created new technologies by mimicking elements of nature, such as geckos and sea turtles, to demonstrate that nature mimicry is an important source of creative design.   Mechanical inventions that borrow...

The advancement of science and technology has greatly benefited human life, but it has also created side effects and risks. The ethical use of science and technology is important because it depends on human values and moral judgment.   In the movie Minority Report, there is a scene in which prophets prevent murders by predicting future murders. Not only are prophecies used, but the prophetic...