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810 articles found
Economics
The trade balance is one of the key indicators for assessing and understanding a country's economic conditions. It represents the difference between exports and imports arising fro
Information technology
Why is pressing an elevator button twice safe, while double-clicking a payment button feels risky? This article explains idempotence—from its mathematical name to everyday buttons,
Social welfare
What if a doctor recommended a choir or a community garden group instead of medicine? This article explains what social prescribing means and how it emerged, how link workers carry
Library & information science
This time, I would like to put together some material on thesauruses, dictionaries that show the various relationships among keywords when searching for the information you want. A
Journalism & communication
Korean media have developed in various forms over thousands of years. From ancient records and medieval methods of communication to modern digital media, the history of Korean medi
Design
Nielsen’s usability heuristics are ten rules of thumb for judging whether a screen is easy and comfortable to use. This article covers how they came about, the ten principles, ever
Psychology
The fundamental attribution error is the tendency to underestimate the situation and overestimate personality when explaining other people’s behavior. This piece covers Heider’s tw
Information technology
A Bloom filter is a probabilistic data structure that uses a tiny bit array to tell you a value is definitely not in a set. This article covers where it came from, how adding and c
General knowledge
Seasonal fruits are rich in the nutrients unique to each season. This article introduces the fruits recommended for spring, summer, autumn, and winter, along with their characteris
Physics
Theories that explain how matter and energy interact in the quantum world form an important foundation of modern physics. Among them, the Schrödinger equation plays an important ro
Physics
Polarization of light is the state in which light’s vibrations are lined up in one direction. This article covers how polarization works, including Malus’s law, the three ways ligh
Social welfare
The settlement house movement sent educated young people to live in poor neighborhoods alongside residents, combining education, everyday support, and social reform. We look at how
