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773 articles found
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
Statistics
Why do conclusions drawn only from what survived so often mislead us? This article explains survivorship bias: what it is and how it arises, the story of the World War II bombers,
Food & nutrition
Efficient meal planning is an important factor in maintaining health and improving physical fitness. In modern society, putting together a balanced diet amid busy schedules and cou
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
Earth science
Drought is one of the natural disasters with the most severe and widespread impacts, causing a variety of environmental, economic, and social problems. Climate change and populatio
Business administration
In the business environment, a deep understanding of organizational behavior has become an essential element of successful organizational operations. Organizational behavior explor
Earth science
Clouds are a familiar sight, yet few people understand how they form, what kinds there are, and what each one tells us. This article explains the principles of cloud formation, the
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
Food & nutrition
Dieting is considered an important issue for many people today, and various methods have been proposed for losing weight and maintaining health. However, improper dieting methods n
Earth science
Why can one side of a mountain range be cool and damp while the other is hot and dry? This article explains the foehn effect: how air changes temperature as it rises and descends o
Earth science
An urban heat island is when a city runs warmer than the countryside around it. This piece covers Luke Howard’s early records in London, why pavement and buildings trap heat, how t
Food & nutrition
The Atwater general factor system estimates a food’s energy by multiplying each nutrient by a fixed value, such as 4kcal per gram for carbohydrate and protein and 9kcal per gram fo
