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810 articles found
Physics
Conservation of angular momentum means that when no outside force acts to change its rotation, the amount of rotation a spinning object has stays the same. This piece covers the co
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
Information technology
Linus’s Law says that given enough eyeballs, all bugs are shallow. This piece covers its origin in Eric Raymond’s The Cathedral and the Bazaar, why many eyes help find bugs, the li
Education
The theory of multiple intelligences, proposed by Harvard psychologist Howard Gardner in 1983, holds that human intelligence is a bundle of relatively independent abilities rather
General knowledge
Hanlon’s Razor is a rule of thumb that says not to blame malice for what mistakes or foolishness can adequately explain. This piece covers where it came from, why we tend to read o
Earth science
The relationship between climate change and humidity is an important research topic in modern environmental science. It is essential to gain a thorough understanding of how climate
Film & media
South Korea's broadcasting industry is changing rapidly and developing steadily. Amid these changes, broadcast scheduling plays an important role in attracting and retaining viewer
Economics
Comparative advantage is the principle that each party gains by specializing in what it can produce at a lower opportunity cost than others. This article covers the basic concept,
Logistics
First In, First Out (FIFO) is the inventory practice of shipping out goods in the order they arrived. We look at what FIFO means and why it matters, the related methods of First Ex
General knowledge
Why can contact lists grow while deep ties stay few? Dunbar’s Number says humans can sustainably keep only so many stable relationships—often about 150—layered as roughly 5, 15, 50
Film & media
The rule of thirds is a composition principle that divides the frame into nine equal parts and places key subjects on the lines or where they meet. This article covers its basic pr
Physics
A sonic boom is the loud sound made when the shock waves created by an object moving faster than sound reach the ground. This article explains how sonic booms form, the small sonic
