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810 articles found
Social welfare
The Elizabethan Poor Law was a 1601 English law that made each parish collect a tax to support its poor instead of leaving relief to church charity alone. Learn why it was created,
Logistics
Why do warehouses hold more inventory than they expect to sell? This article explains what safety stock is and how it relates to the reorder point, how to calculate it from the ser
Film & media
When two people face each other in conversation on screen, we never lose track of who is sitting where, thanks to a filmmaking convention known as the 180-degree rule. This article
Education
Scaffolding is a teaching strategy that gives learners temporary support for tasks they cannot yet do alone and gradually removes it as their abilities grow. This article covers it
General knowledge
What does it mean to be “left-brained” or “right-brained”? This article explains how the two hemispheres divide their roles, explains their cooperation, and discusses the limits of
Design
Coined by industrial designer Raymond Loewy, the MAYA principle says a design should be as advanced as possible while staying within what people can accept. This article covers Loe
Psychology
Learning refers to the process of acquiring or changing knowledge, skills, attitudes, responses, and other attributes through an individual's experiences and changes in their envir
Food & nutrition
Maintaining health amid the busy routines of modern society is very important. However, one area that many people overlook is their intake of essential nutrients. Essential nutrien
Information technology
Why do the shortcuts we take for speed today come back later at a high price? This article explains technical debt, the term first used by Ward Cunningham, how interest builds up,
Economics
Money illusion is the mistake of judging gains and losses by the face value of money rather than its real purchasing power. This article covers nominal versus real value, the famou
Tourism studies
A duty-free shop sells goods to travelers leaving the country without customs duties or value-added tax. This article covers how duty-free shops began, why they can drop taxes, the
Logistics
The vehicle routing problem asks how several vehicles starting from one depot should split up their customers to keep total cost as low as possible. This article covers its basic s
