1. Introduction Recently, I've been thinking about what new features can be added to the blog's structure, such as content structure indicators at the bottom of article pages (see the article: From Content to Structure: A Low-Cost Evolutionary Approach to Blog Development). However, there are still many more advanced capabilities, such as: automatic content recommendations…

1. Starting with "Seoul Spring": I recently watched a 2023 South Korean film, "Seoul Spring." The film is adapted from the true historical event that occurred in South Korea on December 12, 1979—the "December 12 Coup"—and tells the story of the military seizing power and ending South Korea's brief democratization process…

1. When a website is no longer just a webpage, it's already 2026 in the blink of an eye. Looking back, my blog has been running stably for over two years since its initial setup. The time isn't particularly long, but it's enough for me to fully experience the journey from "building the website" to "starting to repeatedly think about the website..."

1. Let's start with a seemingly insignificant anomaly. For many personal bloggers, the fact that their website doesn't display a favicon in Bing search results is probably a fairly "familiar" problem. You don't even need to deliberately investigate; a simple Google search...

1. Introduction Many of us have seen this almost reflexive scene in movies and TV shows: the electrocardiogram (ECG) on the monitor suddenly becomes a straight line; the atmosphere freezes, the doctor shouts, and the defibrillator is brought in; "Clear!"—after the shock, the ECG waveform miraculously returns to normal…

1. Starting with the Black and White Keys: The Smallest Structural Unit of the Musical System. In a previous article (see: The Awakening of Sound - Basics (Part 1): Pitch Structure and Auditory Stability), I mentioned an important fact: the fifth interval describes the auditory proximity or distance between pitches. For example, C and…

1. The immediate reason for writing this article, when stability begins to require maintenance, is that a cross-border transit service provider I've relied on for a long time (which I've always considered the most technically professional) recently went bankrupt, causing my access architecture, which had been running stably for years, to suddenly fail. This change forced me to…

1. Before discussing low, mid, and high notes, many music lovers have likely pondered this question: Is my voice low, mid, or high? This question seems simple, and it even appears that a simple vocal range test could provide the answer: how high can I sing…

1. Introduction Actually, I've wanted to write an article about iptables for a long time. Although I don't use it regularly, every time I do need to use it, I find that I've completely forgotten the relevant knowledge and have to go through it all again. This is because I've learned a certain knowledge point without reinforcing it through writing…

1. From Pitch Names to Solfège: Why Singing Requires a Different Perspective In a previous article (see: The Awakening of the Voice - Basics (Part 1): Pitch Structure and Auditory Stability), I introduced a fundamental fact of the modern vocal system: sound does not exist randomly. Starting with overtone structure, a certain…