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810 articles found
Library & information science
The Mundaneum was a vast index-card archive founded in Brussels by Belgian lawyers Paul Otlet and Henri La Fontaine to gather the world’s knowledge in one place. This article cover
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
Physics
Quantum mechanics is a theoretical framework that plays an important role in understanding the fundamental properties of matter and energy. Among its principles, the uncertainty pr
Earth science
Why is one side of a mountain range lush and the other dry? Moist air rises up the windward slope and drops its rain, then sinks, warms, and dries on the leeward side. This piece c
Tourism studies
Medical tourism is a phenomenon involving the use of medical services across national borders, including a range of services such as disease treatment, dental care, plastic surgery
Business administration
The value chain is a framework that breaks a company's work down into individual activities to see where value is created and where costs leak. This piece covers the basic concept,
Information technology
Smart grids play an important role in addressing the energy challenges of modern society and creating a sustainable future. Unlike traditional power grids, smart grids use informat
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
Logistics
The Economic Order Quantity (EOQ), presented by Ford W. Harris in 1913, is the order size that minimizes the sum of fixed ordering costs and inventory holding costs when demand is
Logistics
Returns, recalls, reusable crates, and recycling all flow in the opposite direction from ordinary shipping. This piece explains what reverse logistics covers, the collection–inspec
Information technology
The CAP theorem states that a distributed system cannot guarantee consistency, availability, and partition tolerance all at once. This article covers how the theorem came about and
Education
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
