Logistics
A Buffer Against Stockouts: Safety Stock
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
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Statistics
Resampling to Measure Error: The Bootstrap (Bootstrapping)
Bootstrapping treats the sample you already have as if it were the population and resamples from it over and over to estimate error and confidence intervals. This article covers ho
Food & nutrition
Magical Dietary Fiber That Protects Your Health: The Power of Fiber
Dietary fiber is one of the nutrients frequently mentioned in discussions of our everyday diet. However, many people do not fully understand exactly what dietary fiber is or why it
Education
Smartness Is Not Just One Thing: The Theory of Multiple Intelligences
The theory of multiple intelligences, proposed by Harvard psychologist Howard Gardner in 1983, holds that human intelligence is a bundle of relatively independent abilities rather
Design
Building Information on a Grid: The Swiss Style (International Typographic Style)
The Swiss Style, also called the International Typographic Style, is a graphic design style that arranges sans-serif type and photographs asymmetrically on an invisible grid to con
General knowledge
It Always Takes Longer Than Expected: Hofstadter’s Law
Hofstadter’s Law says that it always takes longer than you expect, even when you take the law into account. This piece covers its origin in Gödel, Escher, Bach, its recursive struc
Statistics
The Rule Hidden in the First Digit: Benford's Law
In many naturally occurring sets of numbers, smaller leading digits appear far more often: about 30.1% start with 1, and only about 4.6% with 9. This article explains the definitio
Information technology
Economic Innovation and Sustainability in South Korea's Information and Communications Technology (ICT)
South Korea's information and communications technology (ICT) is among the world's recognized advanced technologies, exerting a major influence on the global economy and society. S
Physics
Particle Physics: A Key Science for Unraveling the Universe
Particle physics is a scientific field that explores the universe's most fundamental constituents and the interactions between them. This discipline is essential to uncovering the
Economics
Designing the Future Economy: Macroeconomics and Strategies for Sustained Growth
Macroeconomics plays an important role in understanding the overall state and trends of a national economy. South Korea's economy currently faces various challenges and opportuniti
Education
Awakened by Questions: The Socratic Method
The Socratic Method is a way of teaching through repeated questions so learners find gaps in their own thinking and reach conclusions themselves. This piece covers its origins in S
Statistics
Same Numbers, Different Pictures: Anscombe’s Quartet
Anscombe’s Quartet is a set of four datasets whose summary statistics are nearly identical but whose graphs look completely different. This piece covers how it came about, the trap