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810 articles found
Food & nutrition
Nova sorts food into four groups by how much and why it has been industrially processed, rather than by nutrients like fat or sugar. This article covers how it arose, what the four
Earth science
The Mohorovičić Discontinuity, or Moho, is the boundary between Earth's crust and the mantle below it. This article covers where the Moho lies, how a Croatian seismologist found it
Design
Gradient design is an important design technique that creates visually appealing effects through subtle changes in color and tone. This technique can be used in various fields and
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
General knowledge
Amara's Law says we tend to overestimate the effect of a new technology in the short run and underestimate it in the long run. This article covers where the saying came from, why t
Physics
The photoelectric effect is the phenomenon in which electrons at the surface of a material such as a metal or semiconductor absorb energy from incident light and escape. This artic
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
Earth science
Algal blooms are an environmental problem we occasionally encounter in everyday life. This phenomenon, which gives rivers and lakes a green color in summer, affects us in various w
Psychology
The Stroop Effect is the phenomenon in which naming the ink color of a word slows down and errors increase when the word's meaning and its color do not match. We look at the 1935 e
Chemistry
Why does water sometimes stay liquid below freezing? This article explains what supercooling is and how it works, everyday examples such as clouds, freezing rain, and hand warmers,
Education
Formative assessment checks what students know and don't know while learning is still underway, and uses the results to improve both teaching and learning. We look at where the ter
Psychology
Why are some people so confident even when they do poorly on a test, while experts often seem modest? This article explains the Dunning-Kruger effect and the classic study behind i
