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810 articles found
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
Library & information science
This time, I would like to put together some material about the system used to check out and return books at a library. A library's checkout and return system automates its loan-re
Information technology
Why have computers kept getting smaller, faster, and cheaper for more than half a century? This article explains Moore’s Law: how it began, what it really means, how it changed the
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.
Chemistry
Isotopes are atoms of the same element that differ in weight because they have different numbers of neutrons. We look at atomic structure, stable and radioactive isotopes, how carb
Economics
Economic stabilization focuses on maintaining a sustainable growth path for a national economy while minimizing economic volatility. Quantitative easing (QE, Quantitative Easing) i
Business administration
Why do new products that get off to a brilliant start stall before reaching the mainstream market? This article explains the chasm, the deep gap between early adopters and the earl
Film & media
Why do films and dramas cut from distant shots to close ones? This article explains the main shot types used in video production, namely the long shot, full shot, medium shot, bust
General knowledge
Fermi estimation breaks an unknown quantity into numbers you already know, roughly estimates each piece, and multiplies them to get the order of magnitude. This article covers the
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
Chemistry
Chirality is the property of an object or molecule that cannot be superimposed on its own mirror image. This article covers the basic definition of chirality, how mirror-image mole
Earth science
Why can one side of a mountain range be cool and damp while the other is hot and dry? This article explains the foehn effect: how air changes temperature as it rises and descends o
