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779 articles found
Journalism & communication
The sleeper effect is the phenomenon in which a message from a hard-to-believe source has little power at first but becomes more persuasive as time passes. We look at how it was di
Robotics
How do robot arms and drones stop right at their target? This article covers the history of PID control starting with Minorsky, the roles of the proportional, integral and derivati
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
Food & nutrition
Protein is an essential nutrient for maintaining our body's basic health and functions. It forms the structure of our body's cells, performs numerous life-sustaining functions, and
Earth science
The westerlies are strong winds that blow from west to east across the Earth's mid-latitudes and have a major influence on climate and weather. This article covers how the westerli
Design
Texture has become an essential element in contemporary visual design and user experience (UX). Beyond being a visual element, texture brings physical qualities that we can actuall
Statistics
An easy introduction to non-probability sampling in statistics, which selects samples based on the researcher's judgment or convenience, covering convenience, judgment (purposive),
Design
When a product feels simple, where did its complexity go? This article covers the origins of Tesler's Law, the three parties who share the burden of complexity, everyday examples,
Economics
The benchmark interest rate plays a very important role in the South Korean economy. It is the interest rate set by the Bank of Korea and applied when commercial banks borrow funds
Psychology
The self (ego) is one of the most important concepts in human psychology and a key element in understanding an individual's identity and self-awareness. The self (ego) goes beyond
Tourism studies
Why do people travel, and why do they choose a particular place? This article explains the origins of push-pull theory, push factors as travel motives, pull factors as destination
Tourism studies
Today, the tourism industry means more than simply visiting attractions and taking photographs. The tourism industry is constantly changing worldwide, and themed travel in particul
