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776 articles found
Design
Every color we use in daily life has its own reasons and hidden psychology. This guide covers red, orange, yellow, green, blue, purple, brown, gray, white, and black, explaining th
Library & information science
A close look at the structure of MARC, the format libraries use for cataloging. Using a real record for the book 'Romance of the Three Kingdoms' (Samgukji) from the National Librar
General knowledge
The main types of vision problems such as myopia, hyperopia, astigmatism, and presbyopia, the science of lenses, materials, and coatings, how each problem is corrected, other corre
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
Earth science
The phenomenon in which an asphalt road you walk along every day or a yard in a quiet residential neighborhood suddenly collapses into an enormous hole is called a sinkhole. You ha
Economics
Fiscal policy is a key tool for promoting the stability and growth of a national economy, playing an important role as governments use it to adjust economic conditions, address imb
Psychology
The peak-end rule is our tendency to judge a past experience mainly by its most intense moment and its final moment, rather than by its total or average. This article covers the cl
Statistics
A scale assigns numbers to the attributes of people or objects so they can be expressed statistically. This article explains the four types of scales widely used in sociology, psyc
Food & nutrition
Gut health and immunity are emerging as important aspects of health in modern life. Because much of our body's immune system begins in the gut, maintaining gut health is essential
Robotics
Soft robotics builds robots from flexible materials such as rubber and silicone, taking inspiration from creatures like the octopus and the elephant's trunk. This article covers ho
Business administration
In modern society, a company's success depends heavily on the quality of its leadership. Leadership is an important factor in achieving organizational goals, going beyond simply gi
Information technology
How did the early internet keep working despite small differences between implementations? This article covers where Postel's Law (the Robustness Principle) came from, why it matte
