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784 articles found
General knowledge
Cardiopulmonary resuscitation (CPR) is a basic first aid technique for saving the life of someone in cardiac arrest. This technique temporarily replaces the functions of the heart
Information technology
What an API (application programming interface) is, how Korean services such as Naver, Kakao, and the Public Data Portal use APIs, how to get an API key and connect to an API, and
Information technology
Information security is becoming increasingly important in modern society. As the volume of digital information grows explosively, existing encryption technologies have limitations
Journalism & communication
Why does a friend’s recommendation often sway us more than an ad? This article explains Lazarsfeld’s two-step flow theory—how media messages reach opinion leaders first and then sp
Education
Andragogy is the art and science of helping adults learn. This article covers how the idea emerged, Malcolm Knowles’s six assumptions about adult learners, examples from everyday l
Earth science
Why has Earth swung back and forth between glacial and interglacial periods? This article explains the Milankovitch cycles, the slow but regular changes in Earth's orbit and axis:
Design
Coined by industrial designer Raymond Loewy, the MAYA principle says a design should be as advanced as possible while staying within what people can accept. This article covers Loe
Education
In modern society, childcare has become an important factor that goes beyond simply looking after children and has a significant influence on their growth and development. In parti
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 Myers-Briggs Type Indicator (MBTI) is one of the most widely used personality tools in psychology. This guide covers MBTI concepts, the four preference dimensions, all 16 types
Psychology
Role Theory is one of the important approaches to understanding and explaining human behavior in the social sciences, particularly psychology. Its basic premise is that individuals
Education
In traditional education, we always see the same scene. The teacher explains diligently at the blackboard, while students sit at their desks, busy taking notes. When class ends, th
