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809 articles found
Journalism & communication
Parasocial interaction is the one-sided sense of face-to-face closeness we feel with media figures who don’t know us. This piece covers Horton and Wohl’s 1956 concept, the differen
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
Tourism studies
The Grand Tour was the long educational journey around continental Europe that young English aristocrats took with a tutor from about 1660 to the 1840s. This piece covers the origi
Physics
The Foucault Pendulum is a device that shows the Earth's rotation with your own eyes: a heavy bob on a very long wire whose plane of swing slowly turns relative to the ground. We l
Earth science
Isostasy is the idea that the crust floats on the denser mantle and balances at a height set by its thickness and density. This piece covers how the theory arose, the Airy and Prat
Business administration
Why does each person pull less hard when more people join in? This article covers Ringelmann's rope experiments, the two causes of lost performance, everyday and workplace examples
Logistics
Postponement strategy delays the final steps that make products different, such as color, packaging, or language, until customer orders or demand become clear. This article covers
General knowledge
Why does a measure stop being a good measure once it becomes a target? This article explains the origin and logic of Goodhart's law, examples such as the cobra effect, and how to u
Physics
Cherenkov radiation is the cone of light given off when a charged particle moves through a material such as water or glass faster than light travels in that material. Learn how it
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
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
General knowledge
Sturgeon's Law is the rule of thumb that 90% of anything is crud. We look at how it came about, what it really means, similar ideas that came before it, and how to use it wisely in
