Modern society’s reliance on mechanical power is contributing to problems such as rising obesity. Human power, on the other hand, has a long history of eco-friendly use and could be an important alternative energy source for the future as we transition to a low-energy society.   What is human power? Before we discuss human power, we need to look at the harmful effects of mechanical...

Shale is sedimentary rock with small grain size, and shale gas is the gas trapped within it. Hydraulic fracturing technology has made it possible to extract shale gas economically, breaking the monopoly on oil resources and easing resource wars, which is why shale gas was nominated for the Nobel Peace Prize.   Hi, I’m Shale. I’m a rock that every student has heard of in earth...

Humans help others through altruistic behavior, but it can be viewed as an investment for long-term gain rather than a simple sacrifice. According to the repetition-reciprocity hypothesis, helping and cooperating in ongoing relationships can lead to greater long-term rewards. However, altruistic behavior that involves pure sacrifice is not fully explained by this hypothesis.   What is an...

Dutch coffee is beloved for its unique brewing method and rich flavor, but its long brewing time makes it difficult to produce in large quantities. Supercritical fluid brewing technology solves this problem, allowing you to be efficient and productive without sacrificing coffee flavor.   Walking down the street during the Monday morning rush hour, it’s not uncommon to see people...

The Challenger explosion in 1986 was a wake-up call to the importance of engineering ethics. In addition to technical problems, unethical decisions by management led to the accident, emphasizing the need for engineering ethics education. There is a need for systematic education and awareness of practicing ethical decisions.   On January 28, 1986, NASA’s Space Shuttle Challenger...

Offshore plants produce oil in the ocean and must be designed to withstand strong waves. Offshore plant designers analyze historical data to predict 100- to 1,000-year wave events and incorporate them into their designs to ensure stability.   Can we predict the next 1000 years? Of course, it’s very difficult, almost impossible, to accurately predict all of the changes and events that...

We use the example of Yuna Kim to illustrate that talent and effort are not opposites, but rather complementary, and emphasize that effort is part of talent. This leads to the conclusion that success is achieved through hard work that unleashes latent talent.   People often say that talent is innate and effort is acquired. This perception makes us think of talent and effort as contrasting...

Since 2009, sudden-onset car crashes are still treated as driver error. To protect victims, the government should mandate the disclosure of EDR information, and car companies should be held accountable for fixing the problem.   In April 2009, an acquaintance of mine was involved in a rollover accident, less than a month after purchasing a new car. He pulled into an underground parking garage...

This article explores the various uses of synthetic resins in everyday life, their historical origins, development, and future potential. It also discusses the impact of synthetic resins on our lives, the environmental problems they pose, and the research and efforts being made to solve them.   This morning I woke up on a soft and fluffy mattress, which provides me with a comfortable...