Film & media
Teleporting in Front of a Green Wall: Chroma Key
Chroma key is a video compositing technique that makes one color on screen transparent and layers another background in its place. This piece covers how it works, its history from
Articles to explore
You are browsing the English interface. Articles without a published translation are clearly marked and open in Korean.
810 articles found
Earth science
How Air Pressure Works: Atmospheric Pressure and the Interplay of High and Low Pressure
Air pressure shapes our weather and is something we feel in everyday life. This article covers the basic concept of air pressure, the role and importance of atmospheric pressure, t
Logistics
A Warehouse Where Machines Fetch the Goods: Automated Storage and Retrieval Systems
An automated storage and retrieval system (AS/RS) is equipment in which machines, directed by a computer, store goods in assigned locations and retrieve them when needed. This arti
Tourism studies
Between the Familiar and the New: Cohen’s Tourist Typology
Cohen’s Tourist Typology sorts travelers into four types depending on how much they seek familiarity or novelty. This article covers the environmental bubble, the traits of the fou
General knowledge
The Older It Is, the Longer It Lasts: The Lindy Effect
Why do things that have already lasted a long time tend to last even longer? This article explains where the name Lindy Effect came from, what kinds of things it applies to, how to
Business administration
Where Should We Grow? The Ansoff Matrix
The Ansoff Matrix splits “what to sell (products)” and “whom to sell to (markets)” into existing and new, showing four growth strategies a company can choose along with how risky e
Business administration
The More of Us, the Less Each Tries: The Ringelmann Effect
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
Psychology
Tension Helps in the Right Amount: The Yerkes-Dodson Law
Too little tension and we drift; too much and our minds go blank. This article traces the Yerkes-Dodson Law from the original 1908 mouse experiment to the inverted-U curve, explain
Design
The Odd One Out Stays in Memory: The Von Restorff Effect
The Von Restorff Effect is the principle that among similar items, the one that differs is remembered best. This piece covers Hedwig von Restorff’s 1933 experiment, four contrast d
Education
Set the Destination First, Then Lay the Road: Backward Design
Backward design is a way of planning lessons by starting from the destination, not the activity. This article covers how it differs from the usual approach, its three stages, the s
Social welfare
How Vouchers, Neither Cash nor Goods, Are Changing the World
Social welfare used to be simple. It consisted entirely of delivering goods (In-kind), such as rice or instant noodles, to neighbors facing financial hardship, or depositing a set
Logistics
The Beginning and End of Logistics, the Invoice: From Its Concept to Its Types
The world of logistics and trade is full of complex documents. Among them, the invoice is unquestionably one of the most fundamental and important. Tax invoices and transaction sta