CategoryHumts

In this blog post, we will look at the development of concrete from its origins to the present day, and learn about the technological evolution and importance of reinforced concrete and prestressed concrete.   It is very difficult to find a place on earth that has not been touched by concrete. The presence or absence of concrete can even be used to determine whether modern civilization has...

In this blog post, we will look at the pros and cons of diesel engines and the development of emission reduction technologies (DPF, EGR, SCR) to examine the viability of diesel.   Pros and cons of diesel Compared to gasoline engines, diesel engines generally emit less carbon dioxide, have higher thermal efficiency, and are more durable. However, diesel engines generate a lot of particulate...

In this blog post, we will examine how altruistic behavior affects the formation and evolution of friendships based on the “birds of a feather flock together” hypothesis.   Have you ever sacrificed yourself to help someone else? Or have you ever had someone willingly do something for you even though it didn’t benefit them in any way? Through experiences like these, we can understand...

In this blog post, we will explore the principle of how catalysts lower activation energy in chemical reactions, the structure of solid catalysts, and examples of their actual use in industry.   Activation Energy and the Role of Catalysts The minimum kinetic energy required for molecules to meet and undergo a chemical reaction is called activation energy. Reactions with low activation energy...

In this blog post, we will look at the concept and principles of supercritical fluids and introduce their applications and advantages in various industries such as food, medicine, and the environment.   Solid, liquid, and gas are familiar concepts that classify the state of matter according to the arrangement of molecules. However, today’s engineers have discovered a fourth state of...

In this blog post, we will explore why the ukulele is loved by beginners, what makes it so appealing, and how it differs from the guitar.   Recently, there has been growing public interest in the small but charming instrument known as the ukulele. Famous celebrities have released ukulele albums and even show off their skills at fan meetings. There has even been a documentary film about the...

In this blog post, we will explore the physical properties of steel bars and concrete, their complementary roles, and the scientific reasons why reinforced concrete is widely used in building structures.   Various materials are used in the construction of buildings. Reinforced concrete is one of the most commonly used materials. Reinforced concrete is a material made by adding steel bars to...

In this blog post, we explain through group selection theory that altruistic behavior is not simply a loss for the individual, but an evolutionary strategy for the survival and prosperity of the group.   We encounter many “good people” in the world. People who readily give a thousand won to beggars on the subway, people who donate to the Salvation Army’s red baskets at the end of the...

In this blog post, we will examine the limits of genetic engineering and the need for social consensus, focusing on the bioethical issues raised by the development of designer baby technology.   Since the dawn of time, humans have imagined a more perfect and healthier life. With the advancement of biotechnology in modern times, these imaginations are gradually becoming a reality, and among...

In this blog post, we will look at the reasons why people sacrifice themselves for others and become overly conscious of how others see them, as well as the root causes of this behavior.   Everyone has their own strengths and weaknesses. I have many strengths, but I have also done things that were not so good. With the help of my friends, I tried to think of my bad behaviors. During one...