In this blog post, we will examine the limitations of the Copenhagen interpretation through Schrödinger’s cat, a representative thought experiment in quantum mechanics. Quantum theory is a physical theory that explains the microscopic world. The microscopic quantum world refers to a world that is approximately 1 nanometer in size. Until the 19th century, classical mechanics...
How can a crystal oscillator measure invisible, microscopic masses?
In this blog post, we will look at how the piezoelectric effect and crystal oscillators can be used to measure extremely small masses such as gas molecules and DNA, and explore some of their applications. Scales commonly measure mass by using the principle of levers or by measuring changes in electrical resistance. So how do ultra-high-precision scales measure the mass of microscopic...
Why have shop windows become mirrors that reflect our desires?
In this blog post, we will examine how shop windows go beyond simple display spaces to stimulate our desires and identities. Shop windows are one of the representative cultural symbols of consumer society. Just as we read the cover and table of contents before reading a book, shop windows allow us to enter the spatial text of consumer society. “Text” is a term that refers to all artifacts...
Is the shutdown system a form of protection for young people or excessive control?
In this blog post, we will examine the validity of the shutdown system, focusing on its effectiveness, side effects, and impact on the freedom and rights of young people. Controversy and unfairness of the shutdown system Recently, there has been controversy on the internet regarding the “shutdown system.” According to a Korean newspaper article published on October 14, there have been...
Is the shutdown system effective for young people, and are there any side effects?
In this blog post, we analyze from various perspectives whether South Korea’s shutdown system is actually effective in protecting young people or whether it is causing side effects. What is the shutdown system? The shutdown system is a technical measure implemented by the Ministry of Gender Equality and Family of South Korea that restricts internet game access for youth under the age...
How can Cepheid variable stars tell us how far away stars are?
In this blog post, we will introduce a method of measuring distance using the brightness cycle of stars and its connection to the expansion of the universe. In the early 20th century, American astronomer Slipher discovered the phenomenon of “red shift” while studying the spectra of stars in external galaxies. Red shift refers to the shift of absorption lines in starlight from external...
Is prostitution a crime that should be banned, or should it be institutionalized as a form of labor?
In this blog post, we will examine the practical limitations and side effects of sex trafficking laws and explore how legalizing sex trafficking could be a solution for protecting women’s rights and solving social problems. This brings to mind the old saying, “Red-light districts protect the chastity of women in their homes.” This expression is a metaphor for how difficult it is to...
What is the standard for an “ideal life” that is more important than success?
In this blog post, we will revisit what true success is and talk about the values of an ideal life with conviction, leisure, and confidence. A man confesses his love to the woman he loves. Someone who is confident would confess their love in a suit with flowers in hand at a fancy location, but someone who is timid would confess their love via KakaoTalk while lying in bed. Some people may...
How can coal be made more efficient and cleaner through pretreatment?
In this blog post, we will explore how the pretreatment process of coal increases combustion efficiency and reduces environmental pollution. The coal we commonly know is called briquette coal, which is coal that has been refined. Basically, coal consists of moisture, carbon, ash (the part that becomes ash after combustion), and volatile matter (volatile components). The only part we use...
Why hasn’t altruistic behavior disappeared in the struggle for survival?
In this blog post, we will look at how altruistic behavior has survived through evolution, focusing on the group selection hypothesis. How did giraffes, which used to have short necks, develop long necks? Why are moths, which used to be mainly white, now mostly black? Why are modern pests not easily killed by pesticides? The answer is closely related to Charles Darwin’s theory of...