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810 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
Psychology
A “list price” makes a sale price feel cheap, and an opening offer steers a whole negotiation—because the first number we see becomes our benchmark. This article explains the ancho
Physics
Black holes are among the most mysterious objects in the universe. This article looks at how they form, from dying massive stars to the first stars after the Big Bang, traces the h
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
Education
Why did students tutored one-to-one outscore 98% of an ordinary class? This piece explains Bloom’s 2 sigma problem: the three teaching methods Bloom compared in 1984, what standard
Psychology
Motivation is one of the fundamental forces driving human behavior and an important factor in explaining the reasons and processes that trigger particular actions. In psychology, m
Social welfare
In modern society, mental health welfare has become an essential support system. As stress and anxiety increase alongside a rapidly changing social environment, mental health issue
Chemistry
Inorganic chemistry is a branch of chemistry that, unlike organic chemistry, which centers on carbon, studies most elements other than carbon and their compounds. As a fundamental
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,
Food & nutrition
Fresh rice turns hard in the fridge, and bread grows crumbly over days—because of starch retrogradation. This article explains gelatinization and retrogradation, the conditions tha
Film & media
Rack focus shifts the sharp subject within a single shot by changing the lens focus, guiding the viewer's eye without a cut. This article covers how it works, what it says in a sto
General knowledge
Cunningham’s Law is the internet adage that the best way to get the right answer online is not to ask a question but to post a wrong answer. This article covers where the law came
