CategoryKnowledge

I enjoy competing with myself in my daily life, sometimes pointlessly, but it keeps me energized and active. A small competition between a Korean man and an Arab man in the sauna gave me a lot of pride, but it’s just part of the never-ending competition.   I feel like I have a lot of useless competition. For me, competition is like an energizer bunny that gives me a sense of freedom...

  This article explores what happiness is and whether it is determined by biochemical factors such as hormones or has deeper connections to social and environmental factors. It discusses whether hormone levels, such as serotonin, can be an objective measure of happiness and whether national happiness can be measured through a happiness index.   Introduction We often ask ourselves. Am I...

With nutritional imbalances and a growing focus on healthy eating in the modern world, this article compares vegetarianism and meat-eating, and explains that from a nutritional perspective, eating meat in moderation can provide more balanced nutrition than a vegetable-only diet.   In the past, humans were severely undernourished. Prior to the development of agriculture, humans primarily...

War has caused great human suffering, but it has also led to advances in science and technology. However, it raises the question of whether the advancements brought about by war are really beneficial to humanity and whether we need to develop in a more peaceful environment.   We can all agree that war is morally wrong. The indiscriminate brutality of war – the infliction of suffering...

This article begins with the definition and origins of electricity, the phenomenon first discovered by the ancient Greek philosopher Thales, the invention of the voltaic cell that made electricity practical, and the development of electric current, motors, and communication technology. It also discusses how the study of electricity and electronics will continue to improve our lives.   Today...

The depletion of energy sources is inevitable, but alternative sources such as shale gas and biomass are emerging. However, they don’t solve the problem of environmental pollution. Sustainable sources like solar energy, along with technological advancements, will ensure humanity’s survival.   Energy is an essential part of our lives. We use energy from oil to drive our cars, gas...

Did human language evolve by natural selection or was it shaped by the development of intelligence and the brain through social conventions? This article challenges Steven Pinker’s theory of linguistic evolution and argues that language is not the result of simple evolution, but a complex system that is the result of a combination of intelligence and social factors.   In nature, humans...

Milk is a complete food, which means it contains a wide range of nutrients, and there are many studies that show its health benefits. Many of the claims made by anti-milk advocates, such as over-marketing, causing osteoporosis, and cancer, are exaggerated or limited to a few cases of overconsumption, and in moderate amounts, milk is beneficial.   A long time ago, the world was rocked by the...

The dangers of global warming are scientifically proven, and the resulting sea level rise and extreme weather events are becoming more frequent. However, many people only superficially recognize the seriousness of the problem and are putting off taking action to reduce greenhouse gases because they don’t see an immediate impact.   People don’t take global warming seriously these...

This article discusses the human tendency to want recognition when doing good deeds, even though we shouldn’t expect anything in return. It discusses the beauty and value of secret good deeds, emphasizing that the true value of a good deed is not the recognition, but the motivation that leads to other good deeds.   In life, there are times when you can help someone who really needs it...