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772 articles found
Journalism & communication
Inoculation theory holds that people who meet weak counterarguments in advance and practice refuting them resist stronger persuasion later. This piece covers William J. McGuire’s 1
Chemistry
An in-depth look at chromatography, an essential tool in chemical analysis: its basic principles and history, major techniques such as HPLC, GC, IC, SEC, and paper and thin-layer c
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
Chemistry
Saponification is the chemical reaction in which fats and oils react with an alkali to become soap and glycerol. This article covers how the reaction works, why soap removes grease
Economics
The Consumer Price Index (CPI) is one of the key indicators in economics, used to measure changes in consumers' cost of living. This indicator plays an important role in various ar
Social welfare
The Beveridge Report, published in Britain in 1942 during the Second World War, proposed rebuilding postwar welfare around flat-rate social insurance for every citizen. This piece
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.
Film & media
Foley is the craft of recording everyday sounds such as footsteps, rustling clothes, and closing doors in post-production to match the picture. This piece covers its roots in 1920s
Business administration
Disruptive innovation is innovation that looks inferior at first but wins new customers with a cheaper, simpler alternative and gradually takes over the mainstream market. This art
Earth science
Clouds are a familiar sight, yet few people understand how they form, what kinds there are, and what each one tells us. This article explains the principles of cloud formation, the
Robotics
Inverse kinematics finds the joint angles that place a robot’s end effector at a desired pose. This piece covers forward versus inverse kinematics, multiple or missing solutions an
Food & nutrition
Sous vide is a cooking method in which food is vacuum-sealed in a plastic bag and cooked slowly for a long time in water held at a precise temperature. This article covers how it c
