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792 articles found
Library & information science
The Five Laws of Library Science are five short principles, published by the Indian mathematician and librarian S. R. Ranganathan in 1931, that sum up whom and what a library exist
Earth science
Tides, the periodic rise and fall of sea level, are driven mainly by the gravity of the Moon and the Sun. This article covers how tides work, the differences between high and low t
General knowledge
Sturgeon's Law is the rule of thumb that 90% of anything is crud. We look at how it came about, what it really means, similar ideas that came before it, and how to use it wisely in
Film & media
Documentaries are loved by many as a medium that captures reality as it is while conveying profound insights and emotional impact. Their popularity continues to grow, making a soph
Design
Dieter Rams’ Ten Principles for Good Design sum up, in ten sentences, the idea that design is not decoration but the work of making things useful, understandable and long-lasting.
Food & nutrition
Vitamins are essential nutrients for maintaining our health and normal bodily functions. They come in various forms, have different functions, and play important roles in many phys
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
Robotics
Why can computers beat chess champions yet struggle to pick up a cup? This article covers the origins of Moravec's paradox, its evolutionary explanation, examples from robotics, an
Film & media
Day for night is a filmmaking technique that makes scenes shot in daylight look like night. This article covers why filmmakers shoot night in the daytime, the four main ways to fak
Business administration
The Ansoff Matrix splits “what to sell (products)” and “whom to sell to (markets)” into existing and new, showing four growth strategies a company can choose along with how risky e
Social welfare
What community welfare is, why it matters, its three types (preventive, supportive, and developmental), and five examples of community welfare services from regions across Korea.
Journalism & communication
Four Theories of the Press (1956) sorted the world's press into authoritarian, libertarian, social responsibility, and Soviet communist theories. This article covers what each beli
