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810 articles found
General knowledge
Life consists of checking your smartphone as soon as you open your eyes each morning, working in front of a monitor all day, and enjoying content until bedtime. This routine is all
Psychology
An overview of 12 defense mechanisms from Freud's psychoanalysis, grouped into avoidance, anxiety-relief, and satisfaction types, with a short explanation of each.
Logistics
Why is the short trip from a local depot to your front door the costliest and hardest part of logistics? This article covers what last-mile delivery is, why it is so expensive, the
Information technology
Information security is becoming increasingly important in modern society. As the volume of digital information grows explosively, existing encryption technologies have limitations
Physics
Bernoulli’s principle says that within a single flow, a fluid’s pressure drops where it speeds up and rises where it slows down. This piece covers how the principle came about, the
Chemistry
A flame test identifies metal elements by the unique color of light they emit in a flame. This piece covers how the colors arise, Bunsen and Kirchhoff’s spectroscopy, fireworks, an
Statistics
Inferential statistics is a methodology that plays a very important role in analyzing and interpreting data. It is a statistical technique that uses sample data to draw conclusions
Journalism & communication
Why do we pick the media we do? Uses and Gratifications Theory, systematized in the 1970s by Elihu Katz, Jay Blumler, and others, sees people not as passive receivers of messages b
Robotics
How does a robot with no map work out both its surroundings and its own position? This piece explains SLAM: the chicken-and-egg problem behind it, its roots in the 1986 IEEE roboti
Information technology
HTML is short for Hyper Text Markup Language and is one of the languages needed to create websites. Here, HTML mainly uses the concept of tags to create web documents, and this art
Film & media
In cinematography, lighting is one of the core elements, playing an important role in determining the quality and atmosphere of the imagery. Lighting can convey emotions and storie
Education
Why does learning stall when there is too much to hold in mind at once? This article covers the origins of cognitive load theory and the limits of working memory, the three types o
